How much work is needed to move a 40 pound box a distance of 2 feet?
????-foot pounds

Answers

Answer 1

Answer:

80-foot pounds

Step-by-step explanation:

Answer 2

As per the given data, the work needed to move the 40 pound box a distance of 2 feet is 79.86 foot-pounds.

What is work done?

In physics, work is defined as the product of force and displacement, where force is the applied force and displacement is the distance moved by the object in the direction of the applied force.

To calculate the work needed to move a 40 pound box a distance of 2 feet, we need to use the formula:

Work = Force x Distance x Cos(theta)

where Force is the amount of force applied to move the box, Distance is the distance moved, and Cos(theta) is the cosine of the angle between the force vector and the direction of motion.

Assuming that the force is applied in the same direction as the motion, the angle between the force vector and the direction of motion is 0, and thus Cos(0) = 1. Therefore, the formula simplifies to:

Work = Force x Distance

We are given that the box has a weight of 40 pounds. Since weight is a type of force, we can use the formula:

Force = Mass x Acceleration due to gravity

where Mass is the mass of the box and Acceleration due to gravity is the gravitational acceleration constant, which is approximately 32.2 feet per second squared.

Converting the weight of the box from pounds to slugs (the unit of mass in the English system of units) gives:

Mass = Weight / Acceleration due to gravity = 40 pounds / 32.2 feet per second squared = 1.24 slugs

Therefore, the force required to move the box is:

Force = Mass x Acceleration due to gravity = 1.24 slugs x 32.2 feet per second squared = 39.93 pounds-force

Finally, we can calculate the work needed to move the box a distance of 2 feet as:

Work = Force x Distance = 39.93 pounds-force x 2 feet = 79.86 foot-pounds

Therefore, the work needed to move the 40 pound box a distance of 2 feet is 79.86 foot-pounds.

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Related Questions

Please help I’m on vacation and I didn’t go to school yesterday

Answers

Answer:

28 [tex]cm^{2}[/tex]

Step-by-step explanation:

The formula of area for triangles: [tex]\frac{1}{2}bh[/tex]

[tex]\frac{1}{2}[/tex] * 7 = 3.5   (3.5 *2) = 7

The formula for area of a rectangle: bh

7*3 = 21

Add the areas together 21+7 = 28 squared cm

Answer:

28cm²

Formula of area of triangle:

1/2 x base x height

Formula of area of rectangle:

length x width

thus,

area of the whole thing:

(1/2 x 7cm x 2cm)+(3cm x 7cm)

=7cm²+21cm²

=28cm²

Help pls giving branliest

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Answer:

What types of nouns should be used in effective process writing?

Step-by-step explanation:

Answer: I don’t see anything

el acensor de 8 es 7'?

Answers

Answer:

La planta de la que ha salido el ascensor es: -1(planta del sótano)

Datos:

Subió 8 pisos

Piso final= 7

Explicación:

Para resolver el enunciado, se debe tener en cuenta que:

Piso final - Piso inicial= 8

Reemplazando y despejando:

7-Piso inicial= 8

Piso inicial= 7-8

Piso inicial= -1

Por lo tanto, ha salido de la planta del sótano

Verificando:

Piso inicial +8= piso final

-1+8= Piso final

7= piso final

Profundiza en matemáticas en brainly.lat/tarea/10834640

Step-by-step explanation:

Answer:

¡Eso es extraño! Espero nunca llegar a ver que me perdería. ¿Sería como si el octavo piso fuera en realidad siete?

Step-by-step explanation:

The sum of two numbers is 66. The smaller number is 18 less than the larger number. What are the numbers?

Answers

x+y=66
x-18=y

x+x-18=66
2x=66+18
2x=84
x=84/2
x=42

y=x-18
y=42-18
y=24

Check:
42+24=66

42-18=24

Good luck.

The graph represents distance traveled varying directly with time.
What would be the distance traveled after 12 hours?

a. 40 miles
b. 540 miles
c. 480 miles
d. 600 miles

Answers

The correct answer is letter C

Answer:

c. 480 miles.

Step-by-step explanation:

From the graph:

after 5 hours  distance travelled is 200 miles.

So by proportion distance in 12 hours = 200 * 12/ 5

= 2400/5

= 480 miles.

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Answers

Answer:

∠LPN = 57°

Step-by-step explanation:

arc LMN = 360° - 102° - 144° = 114°

∠LPN = 114°/2 = 57°

Helppppppppppppp meeeee

Answers

The answer should be b

In a given equation, C varies inversely with D. If C is 50 when D = 11.5 , find C when D = 20

Answers

Answer:

Sry I don't know yrrrrrrrrrrrr

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no links​

Answers

Answer:

the highest or greatest common factor 12,20,and 28 is 4

Answer:

12, 20, 28.

Step-by-step explanation:

here is the answer

no links

no photos

just a simple answer

have a great day/night

:)

How many pairs of glasses can we make with the foil beads and how many foil beads will be left over ?

Answers

Answer:

I hate to break it, but you ain't giving any information or numbers

Write a proportion

Four fruit smoothies use 2 1/2 cups bananas. How many cups of bananas are needed to make six fruit smoothies? Will give Brainest if explained

Answers

Step-by-step explanation:

4 smoothies = 2 1/2 banana

you need to make 2 more smoothies, So half of what you did already.

(2.5)/2= 1.25 then add them (2.5)+(1.25)

6 smoothies = 3.75 or 3 3/4, same thing.

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Answers

The answer is A because it can be put into the equation: y= 3x+10

Answer:

A

Step-by-step explanation:

y = 3x + 10

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Answer:

the answer would be false

Solve for the missing side. Round to the nearest tenth.
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15.6

Step-by-step explanation:

Please help I’ll mark you as brainliest if correct

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190.5 Centimeters.

Step-by-step explanation:

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Answers

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Step-by-step explanation:

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find the angle of elevation of a kite on a 50m
string flying 40m vertically above the ground.

Answers

sin(x)=40/50
x= sin^-1(40/50)
x= 53.1301023542—>53.1 rounded to the nearest tenth
angle of elevation is 53.1

The angle of elevation of a kite is 53.13°

What is angle of elevation?

"It is the angle formed by the line of sight and the horizontal plane for an object above the horizontal surface."

What is sine angle?

"For a right triangle, the sine of acute angle [tex]\theta[/tex] is,

[tex]sin(\theta)=\frac{opposite ~side}{hypotenuse}[/tex]"

For given question,

Consider the following diagram for given question.

The length of the string (AC) = 50m

The kite is flying 40m vertically above the ground.

⇒AB = 40m

We need to find the angle of elevation [tex]\theta[/tex]

Consider the sine of angle  [tex]\theta[/tex]

[tex]\Rightarrow sin(\theta)=\frac{AB}{AC} \\\\\Rightarrow sin(\theta)=\frac{40}{50}\\\\\Rightarrow sin(\theta)=0.8\\\\\Rightarrow \theta=sin^{-1}(0.8)\\\\\Rightarrow \theta=53.13^{\circ}[/tex]

Therefore, the angle of elevation of a kite is 53.13°

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if good answer... will give brainly and also 5 stars and everything​

Answers

Answer:

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Step-by-step explanation:

I hope this helps! Have a great rest of your day!

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Answers

Answer:

A,C,D

Step-by-step explanation:

I took it on Edge

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Answers

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

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