A 0,34-kg volleyball is flying west at 1,98 m/s when it strikes a stationary 0,60-kg basketball dead centre. The volleyball rebounds east at 0,79 m/s. What will be the velocity of the basketball immediately after impact? Choose the east direction as positive.

Answers

Answer 1

Explanation:

use the law of conservation of momentum

M1U1+M2U2=M1V1+M2V2

m-mass

u-initial velocity

v-final velocity

1-volleyball

2-basket ball dead center

so using the above formula

0.34×1.98+0.64×0=0.34×0.79+0.64×V2

to get

0.6732+0 = 0.2686+0.64V2

0.4046=0.64V2

divide both sides by 0.64 to get V2 which is the final velocity of basketball

0.6322m/s=V2

Answer 2

The final velocity of the basketball after the impact is 1.643 m/s west.

The given parameters;

mass of the volleyball, m = 0.34 kginitial velocity of the volleyball, u₁ = 1.98 m/smass of the stationary basketball, m₂ = 0.6 kgfinal velocity of the volleyball, v₁ = 0.79 m/s

The final velocity of the basketball after the impact is calculated by applying the principle of conservation of linear momentum;

m₁u₁  +  m₂u₂  =  m₁v₁   +  m₂v₂

0.34(-1.98) + 0.6(0) = 0.79(0.34) + 0.6(v₂)

-0.673 = 0.316 + 0.6v₂

-0.989 = 0.6v₂

[tex]v_2 = \frac{- 0.989}{0.6} \\\\v_2 = -1.643 \ m/s\\\\v_2 = 1.643 \ m/s \ west[/tex]

Thus, the final velocity of the basketball after the impact is 1.643 m/s west.

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Related Questions

A cricket batsman hits a ball at a speed of 27m/s at an angle of 60 degrees to the horizontal. How far away would you have to stand in order to catch it (assuming you want to catch it just before it hits the ground)?

Answers

Answer:

64.4 m

Explanation:

First, find how long it takes to land.  Given in the y direction:

Δy = 0 m

v₀ = 27 m/s sin 60° ≈ 23.4 m/s

a = -9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

0 m = (23.4 m/s) t + ½ (-9.8 m/s²) t²

t = 4.77 s

Next, find how far it travels in that time.  Given in the x direction:

v₀ = 27 m/s cos 60° = 13.5 m/s

a = 0 m/s²

t = 4.77 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (13.5 m/s) (4.77 s) + ½ (0 m/s²) (4.77 s)²

Δx = 64.4 m

hey can anyone help me out in dis pls

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Answer: 1. Liquid, molecules aren't packed very closely, and take the shape of the bottom of the container 2. Gas molecules are far apart and fill the container completely

Explanation:

give reason the si syetem of units is better than the mks system​

Answers

is there a tutor available

The periodic table includes
_____ periods.

Answers

There are currently seven complete periods in the periodic table

Answer:

The periodic table includes

Seven periods and Eighteen groups

what are forces that two objects apply on each other

Answers

Answer: Whenever two objects are touching, they usually exert forces on each other. The force of gravity, on the other hand, is an example of a force that exists between objects without them having to be in contact. Objects with mass exert forces on each other via the force of gravity.

HOPE IT HELPED:) HAVE A NICE DAY

What kind of things would Physics be able to answer? I. How does a hair dryer work? II. How does a lightning bolt form? III. How far will a cannon ball fly through the air? IV. What happens to a person after they die? I and III I, II, and III I only I, II, IV

Answers

Answer:

physics answers everything to understand biology you need to understand chemistry which is connected to physics which is connected to mechanics like fluid mechanics or quantum mechanics which is connected to math and all of that is science not particularly physics but physics can answer all of the questions you asked and more.

Explanation:

Answer:

sorry im only in fifth grade

Explanation:

What can you say about the motion of an object if its velocity time graph is a straight line parallel to the time axis

Answers

the velocity is constant .

Explanation:

it means its velocity and acceleration is constant. And there is no change in displacement , so the object is not moving.

- The school zone in front of your school has a posted speed limit of 25 mi/h, which is about 11 m/s. Let's
examine the stopping of a car in several different situations.
a. The crossing guard holds up her stop sign, and the driver is paying attention well. The car moves at a
constant velocity of 11 m/s for 2.3 seconds while the driver reacts, then slows down at a constant rate
of -4.5 m/s2. What is the stopping distance for the car in this situation?​

Answers

Answer:

s = 38.7 m

Explanation:

First we calculate the distance covered during uniform motion of reaction time.

s₁ = vt

where,

s₁ = distance covered during uniform motion = ?

v = uniform speed = 11 m/s

t = time = 2.3 s

Therefore,

s₁ = (11 m/s)(2.3 s)

s₁ = 25.3 m

Now, we calculate the distance covered during decelerated motion:

2as₂ = Vf² - Vi²

where,

a = deceleration = -4.5 m/s²

s₂ = distance covered during decelerated motion = ?

Vf = Final Velocity = 0 m/s

Vi = Initial Velocity = 11 m/s

Therefore,

2(-4.5 m/s²)s₂ = (0 m/s)² - (11 m/s)²

s₂ = (-121 m²/s²)/(-9 m/s²)

s₂ = 13.4 m

the total distance will be:

s = s₁ + s₂

s = 25.3 m + 13.4 m

s = 38.7 m

The dimensions of a room are 16.40 m long, 4.5 m wide and 3.26 m high. What is the volume of the room in cubic meters? Express your answer in scientific notation.

Answers

Answer:

the volume of the room is 240.588 meters3

The picture shows the scientific notation

Explain why there is a delay between the arrival of the sound transmitted through the steel pipe and the sound transmitted by the air in the pipe.​

Answers

Answer: RATE ME AND MAKE ME BRAININESS AND THANK ME

Explanation:Sound waves are pressure waves that travel through Earth's crust, water bodies, and atmosphere. Natural sound frequencies specify the frequency attributes of sound waves that will efficiently induce vibration in a body (e.g., the tympanic membrane of the ear) or that naturally result from the vibration of that body.

Sound waves can potentiate or cancel in accord with the principle of superposition and whether they are in phase or out of phase with each other. Waves of all forms can undergo constructive or destructive interference. Sound waves also exhibit Doppler shifts—an apparent change in frequency due to relative motion between the source of sound emission and the receiving point. When sound waves move toward an observer the Doppler effect shifts observed frequencies higher. When sound waves move away from an observer the Doppler effect shifted observed frequencies lower. The Doppler effect is commonly and easily observed in the passage of planes, trains, and automobiles.

The speed of propagation of a sound wave is dependent upon the density of the medium of transmission. Weather conditions (e.g., temperature , pressure, humidity , etc.) and certain geophysical and topographical features (e.g., mountains or hills) can obstruct sound transmission. The alteration of sound waves by commonly encountered meteorological conditions is generally negligible except when the sound waves propagate over long distances or emanate from a high frequency source. In the extreme cases, atmospheric conditions can bend or alter sound wave transmission.

The speed of sound in steel is about 17 times as fast as it's speed in air.

Naturally, when a sound starts out at one end of a pipe, it reaches the other end thru the steel before it reaches the other end thru the air in the pipe.

The longer the pipe is, the longer will be the delay between the arrival of the two sounds at the other end.

Is kilometer less than, greater than, or equal to dekameter

Answers

Answer:

Less than

Explanation:

Because a dekameter has a higher vantage point than kilometer as a kilometer has a lower vantage point

Answer: a dekameter is actually 10 yrds while 1 kilometer is actually 4 to 5 miles

Explanation:

If size of an image is 10 cm and the magnification produced by a mirror is +1, what will be the size of object?

Answers

Answer:

h = 10 cm

Explanation:

The magnification produced by a mirror is given by :

[tex]m=\dfrac{h'}{h}[/tex]

h' is the image size and h is the object size

We have, h = 10 cm, m = +1

So,

[tex]m=\dfrac{h'}{h}\\\\h=\dfrac{10}{1}\\\\h=10\ cm[/tex]

So, the size off the object is same as that of the size of the image i.e. 10 cm.

what is the difference between a physical quantity and a unit​

Answers

Answer: What is the difference of physical quanity and a unit?

Explanation: If you are working science or math problems, the answer to this question is that quantity is the amount or numerical value, while the unit is the measurement. For example, if a sample contains 453 grams, the quantity is 453 while the unit is grams.

in which state of matter are particles spread farthest apart from another?

Answers

Gas particles are farthest apart from eachother.

Solid particles are tightly packed.

Liquid particles are somewhat loose.

Gas particles are rapidly moving and are farthest apart.

:D

Gas particles are spread farther apart from each other.

What is gas and its characteristics?

Gas is a state of matter that has no fixed shape and no fixed volume.

Gases have a lower density than other states of matter, such as solids and liquids.

There is a great deal of empty space between particles, which have a lot of kinetic energy and aren't particularly attracted to one another.

The main characteristics of matter are:

(1) they are easy to compress,

(2) they expand to fill their containers, and

(3) they occupy far more space than the liquids or solids from which they form.

In a gas, particles are in continual straight-line motion.

The kinetic energy of the molecule is greater than the attractive force between them, thus, they are much farther apart and move freely of each other.

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To work on muscular endurance, you should use?

Answers

Answer:

Arm Workouts- with Weights.

Pushups for Upper-Body Strength.

Lunges and Squats.

Explanation:  Lifting weights is one way to build muscular strength and endurance in your arms.

Pushups primarily work the pectoral muscles of the chest, starting directly below the neckline.    

Brainlist please?       and your welcome!

differences between a pair of scissors and nailcutter​

Answers

Answer:

Different classes of levers

Explanation:

The main difference between a pair of scissors and nailcutters is that they are different classes of levers. Scissors are made from two class 1 levers, meaning that the effort is exerted at one end and the load at the other with the fulcrum in the middle. This is because we press one end together (the handles) so we are applying the effort, and the other side closes from the fulcrum in the middle.

Nailcutters on the other hand, consist of two class 2 levers. This means that the fulcrum is on the opposite end to the effort with the load in the middle. This is because we press down on one side and the two parts move closer together.

Hope this helped!

A baseball player throws a baseball at 42 m/s. If the other player catching the baseball is 18 m from the player, how much time does it take the baseball to reach him?

Answers

Divide the distance by the speed:

(18 m) / (42 m/s) = 3/7 s ≈ 0.43 s

A toy car is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.5 m/s2. What is the final velocity after 5.0 s?

a 21.6 m/s
b 19.2 m/s
c 17.5 m/s
d 24.5 m/s

Answers

Explanation:

v = u + at

v = 5 + 2.5 * 5

V ( final velocity after 5 sec) = 17.5 m/s

what is torque...........m​

Answers

Answer:

Torque is the rotational equivalent of linear force. Torque is the engine's rotational force.

Hope this helps..

Explanation:

A microwave has a _________ wavelength and a ________ frequency than a radio wave

Answers

Answer:

A microwave has a shorter wavelength and a higher frequency than a radio wave.

Explanation:

On the electromagnetic spectrum, radio waves have the absolute lowest frequency, as well as the longest wavelength; therefore, any wave on the electromagnetic spectrum would have a shorter wavelength and higher frequency than a radio wave.

what type if data do you call it when a scientists mesure the length of the growing root tip and determine the rate a particular reaction​

Answers

Root mass
Grid intersect technique remove plants from soil
Trace the roots on paper, measure each of the tracing

Two magnets are placed near each other on a space station orbiting Earth.
Their north poles are facing each other. Which statement explains what will
happen to the magnets?
O A. They will be repelled because they are in each other's magnetic
field.
B. They will not move because they have only half of a magnetic
field.
C. They will not move because they have very small gravitational
fields.
D. They will be attracted because their electric fields will add
together

Answers

Answer: A. They will be repelled because they are in each other's magnetic

field.

Explanation: Apex and gravity and electrical don't have effect on magnets magnetic field.

The statement that described the happening to the magnets should be that they will be attracted because they are in each other's magnetic.

What is a magnet?

Magnet refers to the  piece of iron or other material that comprise of the atoms also it inbuilt the magnetism properties like attraction of other type of iron objects. In the case when the two magnets shoud be placed near to each other also their north poles should be faced each other so it should be attracted since it is considered as the each other magnetic.

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An object is released from rest near a planet's surface. A graph of the acceleration as a
function of time for the object is shown for the 4s after the object is released. The
positive direction is considered to be upward. What is the displacement of the object after 2s?

Answers

Answer:

The displacement and direction of the body after 2 seconds is 10 meters downwards

Explanation:

The given information are;

From the graph, the acceleration, is seen as the horizontal line that starts from the y-coordinate, y = -5 m/s²

Therefore;

The acceleration of the body after it was released from rest = -5 m/s² with an upward direction;

Which gives, the acceleration of the body downwards = Opposite sign to the acceleration of the body upwards = 5 m/s²

The displacement, s, of the body after 2 seconds is given by the following equation of motion;

s = u·t + 1/2·a·t²

Where;

u = The initial velocity of the body = 0 m/s

t = The time duration of the displacement = 2 s

a = The acceleration of the body = 5 m/s², downwards

Therefore, by substituting the values, we have;

s = 0 × 2 + 1/2 × 5 × 2² = 10 meters

s = 10 meters

The displacement of the body after 2 seconds =  10 meters

Given that the direction of the displacement and the direction of the acceleration are the same, we have;

The displacement and direction of the body after 2 seconds = 10 meters downwards.

The displacement of the object moving downwards is 10 m.

The given parameters;

time of motion of the object, t = 2 sacceleration of the object constant = -5 m/s²

The displacement of the object moving downwards (negative direction) is calculated using the second kinematic equation as shown below;

s = ut - ¹/₂at²

s = 0 - 0.5 x (-5) x (2)²

s = 10 m

Thus, the displacement of the object moving downwards is 10 m.

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What is the average speed of a motorcycle that goes 90 meters in 5 seconds?

Answers

Answer:18 m/s

Explanation:

Take=speed=distance /time

is -9/6 irrational, rational, and integer, a whole, number or natural?

Answers

Answer:

-9/6 is only rational.

Explanation:

-9/6 = -1.5

not an integer bc decimal

not irrational because it can be represented as a fraction

not a whole or natural number because its negative.

describe how changing the particles changed the atom​

Answers

Answer: During chemical changes particles do change with atoms or ions regrouping . Bonds (links) between atoms break and new ones form and energy is either given out or taken in.

Explanation:

Chemical reactions make particles to change and resulting to change atoms or ions via regrouping .

What is chemical reaction?

The chemical reaction is the reaction between two reactants that led to the formation of products.

The products are substances that forms after reaction. The reactants are the substances which are original materials.

Bonds between atoms break and make new ones. In this process, energy is either rejected or taken in.

The particle are the electrons which are shared between the atoms of same or different elements.

The electrons in the valence get donated or accepted by the atoms and form bond. When the electrons are donated, the bonds break and when electrons are accepted, bonds are formed. So, the new element or compound is formed.

Thus, the chemical reaction are responsible for change in atoms due to change in particles.

Learn more about chemical reaction.

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The acceleration due to gravity on the Moon is gM. Suppose an astronaut on the Moon drops an object from a height of H. The time it would take the object to reach the Moon’s surface would be TM. The same object is dropped from the same height on Earth, where the acceleration due to gravity is gE. The time it takes the object to reach the Earth’s surface is TE. Which of the following is a correct mathematical relationship for the two times?
TE=gEgM−−−√TM

TE=gEgMTM
A

TE=gMgE−−−√TM

TE=gMgETM
B

TE=gEgMTM

TE=gEgMTM
C

TE=gMgETM

TE=gMgETM
D

TE=TM

Answers

The relationship between the two times is [tex]TE = TM\sqrt{\frac{gM}{gE} }[/tex]

The given parameters:

the acceleration due to gravity on the Moon = gM

height from which the object was dropped on moon, =  H

time taken for the object to reach the moon surface, = TM

height from which the object was dropped on Earth, =  H

the acceleration due to gravity on the Earth = gE

time taken for the object to reach the Earth's surface = TE

To find:

The relationship between the two times:

Apply the following kinematic equation:

[tex]H = ut + \frac{1}{2} gt^2\\\\we \ know \ nothing \ about \ the \ initial \ velocity \ u , let \ u = 0\\\\H = \frac{1}{2} gt^2\\\\[/tex]

Height equation for the object on the moon:

[tex]H = \frac{(gM) TM^2}{2}[/tex]

Height equation for the object on the Earth:

[tex]H = \frac{(gE) TE^2}{2}[/tex]

Since the two heights are equal, set the two equation to be equal to each other to determine the relationship between the two times:

[tex]\frac{(gE)TE^2}{2} = \frac{(gM)TM^2}{2} \\\\(gE)TE^2 = (gM)TM^2\\\\make \ TE \ the \ subject \ of \ the \ formula;\\\\ TE^2 = \frac{(gM)TM^2}{gE} \\\\TE= \sqrt{\frac{(gM)TM^2}{gE} } \\\\TE = TM\sqrt{\frac{gM}{gE} }[/tex]

Thus, the relationship between the two times is [tex]TE = TM\sqrt{\frac{gM}{gE} }[/tex]

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PLEASE HELP ASAP!!!!

Answers

T1 = 2×W / squrt (3) +1

T2 = squrt(6) ×W/ squrt (3) +1

Here, T1 is along A.

T2 is along B

W = 250N.

Yo can directly use above formula to find solution.

what does the "LINE OF BEST FIT" mean?​

Answers

Answer:

Line of best fit refers to a line through a scatter plot of data points that best expresses the relationship between those points.

Explanation:

The idea that people behave in odd ways on a full moon is an example of a limitation of science. a characteristic of science. pseudoscience. scientific knowledge.

Answers

Answer:

Pseudoscience

Explanation:

Because its is based on beliefs with a explanation

Answer:

The answer to your question is B.pseudoscience

Explanation:

Pseudoscience means a collection of beliefs or practices mistakenly regarded as being based on scientific method.

I also did the test and got a 100 % on it.

PLZ MARK BRAINLIEST

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