We would like to know the velocity of the block when it reaches some position x. Finding this requires an integration. However, acceleration is defined as a derivative with respect to time, which leads to integrals with respect to time, but the force is given as a function of position. To get around this, use the chain rule to find an alternative definition for the acceleration ax that can be written in terms of vx and dx/ dx.

Answers

Answer 1

Answer:

An alternative definition for the acceleration ax that can be written in terms of [tex]v_x[/tex] and [tex]\frac{dv_x}{dx}[/tex] is [tex]a_x=v_x \frac{dv_x}{dx}[/tex]

Step-by-step explanation:

We know that :

[tex]a_x=\frac{dv_x}{dt}[/tex]

Now we are supposed to find an alternative definition for the acceleration ax that can be written in terms of [tex]v_x[/tex] and [tex]\frac{dv_x}{dx}[/tex]

So, We will use chain rule over here :

[tex]a_x=\frac{dv_x}{dt}\\a_x=\frac{dv_x}{dt} \times \frac{dx}{dx}\\a_x=\frac{dv_x}{dx} \times \frac{dx}{dt}\\a_x=\frac{dv_x}{dx} \times \frac{dx}{dt} [\frac{dx}{dt}=v_x]\\a_x=\frac{dv_x}{dx} \times v_x\\a_x=v_x\frac{dv_x}{dx}[/tex]

Hence an alternative definition for the acceleration ax that can be written in terms of [tex]v_x[/tex] and [tex]\frac{dv_x}{dx}[/tex] is [tex]a_x=v_x \frac{dv_x}{dx}[/tex]

Answer 2

The alternative definition for the acceleration ax that can be written in terms of vx and dx/ dx is [tex]a_x = v_x \frac{dv_x}{dx}[/tex]

Chain rule:

Here we used the chain rule:

It is the basic method for differentiating a composite function. Here the first factor on the right, Df(g(x)), represents that the derivative of f(x) is first found and then x, wherever it arises, is replaced by the function g(x).

So,

[tex]a_x = \frac{dv_x}{dt}\\\\ = \frac{dv_x}{dt} \times \frac{dx}{dx}\\\\= \frac{dv_x}{dx} \times \frac{dx}{dt}\\\\ = \frac{dv_x}{dx} \times \frac{dx}{dt} (\frac{dx}{dt} = v_x)\\\\ = \frac{dv_x}{dx} \times v_x\\\\= v_x\frac{dv_x}{dx}[/tex]

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Related Questions

A box of spaghetti at the grocery store is purchased for $1.60 wholesale and is marked up by 60 percent. Then, the store marks down the item by 20 percent. A customer wants to buy three boxes of spaghetti. How much will the customer pay, including paying 8 percent sales tax? Round your answer to the nearest cent.

Look at the table below.

Steps
Moses’s work
Step 1
1 dollar and 60 cents (1.6) = 2 dollars and 56 cents
Step 2
2 dollars and 56 cents (0.80) = 2 dollars and 5 cents
Step 3
2 dollars and 5 cents (3) = 8 dollars and 20 cents
Step 4
8 dollars and 20 cents (1.08) = 8 dollars and 86 cents

In which step did Moses first make a mistake in his work?
Step 1
Step 2
Step 3
Step 4

Answers

The first step because 1 dollar and 60 cents is not (1.6)= 2 dollars and 5 cents

Which number is rational, an integer, and a real number?
A. 5/7
B. There is no such number.
C. -5
D. 1.5

Answers

A or B I think. Hope this helps!

Answer:

-5

Step-by-step explanation:

Find the coordinates of the midpoint of if A(–4, 7) and S(5, 3).

Answers

Answer:

The answer is

(1/2 , 5)

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

(x1 , y1) and (x2 , y2) are the points

From the question the points are

A(-4, 7) and S(5,3)

A party of 20 adults and 15 children celebrates at a restaurant. Each table in the restaurant seats 4 people. How many tables will the party use?

Answers

Answer:

9

Step-by-step explanation:

20 divided by 4=5 then 15 divided by 4=3.75 so technically 4 so 5+4=9

At the supermarket you can fill your own honey bear container. A customer buys 12 oz of honey for $5.40. i need help.

Answers

Answer:

Ok, So what I would do first if I were you Is probably divide $5.40 by 12. So that would equal $0.45. So that mean it costs $0.45 per oz.

Step-by-step explanation:

How this helped!

Find DF
Segment addition

Answers

Answer:

mDF = 18

Step-by-step explanation:

DE and EF must add up to DF.

Step 1: Set up equation

mDE + mEF = mDF

x + 7 + 7 = 4x + 2

Step 2: Solve for x

Combine like terms: x + 14 = 4x + 2Subtract x on both sides: 14 = 3x + 2Subtract 2 on both sides: 12 = 3xDivide both sides by 3: 4 = xRewrite: x = 4

Step 3: Find mDF

mDF = 4x + 2

mDF = 4(4) + 2

mDF = 16 + 2

mDF = 18

There are two necklaces Maria wants to buy. One is $28.66 and the other is $19.39. She has a coupon for $5 off the total bill when you purchase two items. If she buys both, how much will she owe before taxes?​

Answers

Answer:

$43.05

Step-by-step explanation:

Add $28.66 and $19.39, after that you get 48.05. Then subtract 5 from it and you get $43.05

The cost of renting a car is $20 to take the car and $4 for every hour that it is rented. The total amount Lucie paid was 546. For how many hours did Lucie have the car?

a. Define your variable.
b. Write an equation and solve.
c. Write a sentence to interpret your results.

Answers

h = time in hours

20 + 4h = 546

4h = 526

h = 131.5

131.5 hours

I’m confused how to do ratios

Answers

Answer:

i will explain it to you

Step-by-step explanation:

Me too I don’t even know them it’s hard the answer probably is something

Carlos cut Start Fraction 5 Over 12 End Fraction of a yard of cloth into 5 pieces of equal length. What was the length of each piece of cloth?

Start Fraction 1 Over 60 End Fraction of a yard
Start Fraction 1 Over 25 End Fraction of a yard
Start Fraction 1 Over 12 End Fraction of a yard
One-fifth of a yard

Answers

Answer:

C.1/12

Step-by-step explanation:

Divide 5/12 by 5 since he cut it into 5 equal pieces

If the sum of three consecutive numbers is 852, what is the middle one?

Answers

Divide the total by the quantity of numbers:

852/3 = 284

Because there are an odd quantity of numbers (3) the answer is the middle number.

The answer is 284

Help me easy math problem

Answers

Answer:

15/36

Step-by-step explanation:

Answer:

51/39 then simplify

Step-by-step explanation:

I did it

if side of the triangle in 8cm and side 2 is 5cm, then what is the possible range for the length of the third side of the triangle?​

Answers

Answer:

7cm

Step-by-step explanation:

Which is the correct chemical equation for photosynthesis?

Answers

Answer: The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2.

Step-by-step explanation: This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.

48t-18=57t-81 equal what? t=-38, t=63, t=-7, t=38, t=19, or t=7

Answers

HhshshhsnjgdbshvsjhevsnshvdhdANSWER IN PIC

Answer:

t =7

Step-by-step explanation:

48t-18=57t-81                         Subtract 48t from both sides

48t-48t - 18 =57t-48t - 81       Combine

-18 = 9t - 81                             Add 81 to both sides

-18+81 = 9t -81 + 81                 Combine

63 = 9t                                    Divide by 9

63/9  = 9t/9

7       = t

The length of a rectangle is 3.7 inches when rounded to the nearest tenth of an inch.

Answers

Answer:

what is the answerrrrrrr

Step-by-step explanation:

In a group of five students who took the same test, four of the scores were 85, 92, 81, and 95. If the average of the five students was 89, what was the score of the fifth student?

Answers

Answer:

92

Step-by-step explanation:

89 x 5 = 445

85 + 92 + 81 + 95 = 353

445 - 353 = 92

The score of the fifth student is 92.

What is an average?

An average is a single number taken as representative of a list of numbers, usually the sum of the numbers divided by how many numbers are in the list.

Now it is given that,

Average of the five students = 89

Scores of four students = 85, 92, 81, and 95

Number of students = 5

Let the score of fifth student be x.

Average of the five students = scores of five students/Number of students

scores of five students =Scores of four students + score of fifth student

scores of five students = 85+92+81+95+x

scores of five students = 353+x

Average of the five students = (353+x)/5

⇒89 = (353+x)/5

or, 445 = 353+x

or, x = 445 - 353

⇒  x = 92

Hence, the score of the fifth student is 92

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Solve by taking the square too of both sides.
3(c+3)^2-81=0

Answers

Answer:

x = -3 ±3sqrt(3)

Step-by-step explanation:

3(x+3)^2-81=0

Add 81 to each side

3(x+3)^2=81

Divide each side by 3

3/3(x+3)^2=81/3

(x+3)^2=27

Take the square root of each side

sqrt ((x+3)^2)=±sqrt(27)

x+3 =±sqrt(9*3)

x+3 =±sqrt(9)*sqrt(3)

x+3 =±3sqrt(3)

Subtract 3 from each side

x = -3 ±3sqrt(3)

Isabella types 423 words in 9 minutes. What is Isabella's typing rate in words per minute? HELP

Answers

Answer:

47 words per minute

Help out
It is due at 7:00​

Answers

Answer:

I want the free points. Sorry :)

Which set of numbers best describes the possible values of x in the equation below?
[x-1] = [x]

a. all integer values of x
b. all real number values of x
c. only negative values of x
d. only non-integer values of x

Answers

C only negative values of x

The set of numbers best describes the possible values of x in the equation is option c. only negative values of x.

Calculation of the possible values of x;

Since the equation is

x - 1 = x

So, here the x should be canceled out

So, it should be like

0 = -1

Hence, we can say that

The option c is correct,

And, the rest of the options are incorrect.

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whats the square root of 10?? For each to the nearest 0.05.​

Answers

Answer:

3.16(i think)

Step-by-step explanation:

Simplify the expression and enter your answer below.
(191/99

Answers

Answer:

the correct answer is 1 92/99

Write an
equivalent expression by distributing the "_' "sign outside the parentheses:
- (9r – 3.2s) + 4

Answers

Answer:

-9r+3.2s+4

Step-by-step explanation:

- (9r – 3.2s) + 4

Distribute the minus sign

-9r - -3.2s+4

Subtracting a negative is like adding

-9r+3.2s+4

38.5 divided by 0.5 simplified

Answers

Answer:

77

Step-by-step explanation:

38.5 ÷ 0.5 = 77

77 x 0.5 = 38.5

(think of 5 x 7)

0.5 x 70 = 35 (3.5 left)

0.5 x 7 = 3.5 (0 left)

70 + 7 = 77

i need help please!!

Answers

It’s A. They’re eliminating the x term and they multiply by -2 to add 2x and -2x so it’s A

Solve –8y + 3 > –5.

A. {y | y < –1}
A. {y | y < –1}

B. {y | y > 1}
B. {y | y > 1}

C. {y | y > –1}
C. {y | y > –1}

D. {y | y < 1}

Answers

A bc it’s less then

Answer:

.

Step-by-step explanation:

A store plans to sell two different game consoles, the YuuMi and the ZBox. The store’s wholesale cost for a YuuMi is $250, and the store can sell one for $295. The ZBox’s wholesale price is $400, and the store can sell it for $450. The store’s marketing research indicates that the total monthly demand for game consoles will not exceed 250 units sold. The store’s financial manager does not want to invest more than $70,000 in inventory costs for game consoles. How many of each game console should the store stock in order to maximize their profits, and what is their maximum monthly profit?
Constraints:

Objective formula:

Answers

9514 1404 393

Answer:

Constraints: x + y ≤ 250; 250x +400y ≤ 70000; x ≥ 0; y ≥ 0Objective formula: p = 45x +50y200 YuuMi and 50 ZBox should be stockedmaximum profit is $11,500

Step-by-step explanation:

Let x and y represent the numbers of YuuMi and ZBox consoles, respectively. The inventory cost must be at most 70,000, so that constraint is ...

  250x +400y ≤ 70000

The number sold will be at most 250 units, so that constraint is ...

  x + y ≤ 250

Additionally, we require x ≥ 0 and y ≥ 0.

__

A profit of 295-250 = 45 is made on each YuuMi, and a profit of 450-400 = 50 is made on each ZBox. So, if we want to maximize profit, our objective function is ...

  profit = 45x +50y

__

A graph is shown in the attachment. The vertex of the feasible region that maximizes profit is (x, y) = (200, 50).

200 YuuMi and 50 ZBox consoles should be stocked to maximize profit. The maximum monthly profit is $11,500.

PLEASEE HELP ME AS FAST AS POSSIBLE! According to the fundamental theorem of algebra, how many solutions does this polynomial have?

Btw sorry about the bad lighting

Answers

2, because there are 2 different factors with x in it.

x could be 0, or 4.

Hope this helps

The number of the solution of the polynomial is 2. And the solutions of the polynomial are 0 and 4.

What is polynomial?

A polynomial expression is an algebraic expression with variables and coefficients. Unknown variables are what they're termed. We can use addition, subtraction, and other mathematical operations. However, a variable is not divisible.

The polynomial is given below.

y = 3x(x - 4)

The factors of the polynomial are 3x and (x - 4).

For the solution of the polynomial, put each factor equals to zero.

Then the solution of the polynomial will be

3x = 0

 x = 0

x - 4 = 0

     x = 4

The number of the solution of the polynomial is 2.

And the solutions of the polynomial are 0 and 4.

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sara got 32 question out of 36. what was the percentage she got correct

Answers

Answer:

88.8%

Step-by-step explanation:

Answer:

89% correct

Step-by-step explanation:

32 out of 36

32/36

8/9

0.89

89 percent correct

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