The average acceleration between 0 s and 4 s .

Question

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Answer 1

Question

Chapter 2, Problem 2SP

(a)

To determine

The average acceleration between 0 s and 4 s.

(b)

To determine

The average acceleration between 4 s and 5 s.

(c)

To determine

The average acceleration between 0 s and 5 s.

(d)

To determine

Whether the acceleration in (c) is equal to the sum of the accelerations in (a) and (b).

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Race car driver is cruising down the street at a constant speed of 28.9 m/s (~65 mph; he has a “lead” foot) when the traffic light in front of him turns red. a) If the driver’s reaction time is 160 ms, how far does he and his car travel down the road from the instant he sees the light change to the instant he begins to slow down? b) If the driver’s combined reaction and movement time is 750 ms, how far do he and his car travel down the road from the instant he sees the light change to the instant he slams on her brakes and car begins to slow down? Please answer parts a-B. Show all work. For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places. DONT FORGET TO DRAW VECTORS! ONLY USE BASIC FORMULAS TAUGHT IN PHYSICS. distance = speed * time.

Race car driver is cruising down the street at a constant speed of 28.9 m/s (~65 mph; he has a “lead” foot) when the traffic light in front of him turns red. a) If the driver’s reaction time is 160 ms, how far does he and his car travel down the road from the instant he sees the light change to the instant he begins to slow down? b) If the driver’s combined reaction and movement time is 750 ms, how far do he and his car travel down the road from the instant he sees the light change to the instant he slams on her brakes and car begins to slow down? c) If the driver’s average rate of acceleration is -9.5 m/s2 as he slows down, how long does it take him to come to a stop (use information about his speed of 28.9 m/s but do NOT use his reaction and movement time in this computation)? Please answer parts a-c. Show all work. For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places unless stated otherwise.…

How is it that part a is connected to part b? I can't seem to solve either part and don't see the connection between the two.

Answer 2

Question

Chapter 2, Problem 2SP

(a)

To determine

The average acceleration between 0 s and 4 s.

(b)

To determine

The average acceleration between 4 s and 5 s.

(c)

To determine

The average acceleration between 0 s and 5 s.

(d)

To determine

Whether the acceleration in (c) is equal to the sum of the accelerations in (a) and (b).

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Answer 3

Question

Chapter 2, Problem 2SP

(a)

To determine

The average acceleration between 0 s and 4 s.

(b)

To determine

The average acceleration between 4 s and 5 s.

(c)

To determine

The average acceleration between 0 s and 5 s.

(d)

To determine

Whether the acceleration in (c) is equal to the sum of the accelerations in (a) and (b).

Expert Solution & Answer

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Answer 4

Question

Chapter 2, Problem 2SP

(a)

To determine

The average acceleration between 0 s and 4 s.

(b)

To determine

The average acceleration between 4 s and 5 s.

(c)

To determine

The average acceleration between 0 s and 5 s.

(d)

To determine

Whether the acceleration in (c) is equal to the sum of the accelerations in (a) and (b).

Expert Solution & Answer

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Answer 5

Chapter 2, Problem 2SP

(a)

To determine

The average acceleration between 0 s and 4 s.

(b)

To determine

The average acceleration between 4 s and 5 s.

(c)

To determine

The average acceleration between 0 s and 5 s.

(d)

To determine

Whether the acceleration in (c) is equal to the sum of the accelerations in (a) and (b).

Answer 6

Chapter 2, Problem 2SP

(a)

To determine

The average acceleration between 0 s and 4 s.

Answer 7

Chapter 2, Problem 2SP

(a)

To determine

The average acceleration between 0 s and 4 s.

Answer 8

(b)

To determine

The average acceleration between 4 s and 5 s.

Answer 9

(b)

To determine

The average acceleration between 4 s and 5 s.

Answer 10

(c)

To determine

The average acceleration between 0 s and 5 s.

Answer 11

(c)

To determine

The average acceleration between 0 s and 5 s.

Answer 12

(d)

To determine

Whether the acceleration in (c) is equal to the sum of the accelerations in (a) and (b).

Answer 13

(d)

To determine

Whether the acceleration in (c) is equal to the sum of the accelerations in (a) and (b).

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

Ch. 2 - Prob. 1CQ Ch. 2 - Suppose we choose inches as our basic unit of...Ch. 2 - What units would have an appropriate size for...Ch. 2 - A tortoise and a hare cover the same distance in a...Ch. 2 - A driver states that she was doing 80 when stopped...Ch. 2 - Does the speedometer on a car measure average...Ch. 2 - Is the average speed over several minutes more...Ch. 2 - The highway patrol sometimes uses radar guns to...Ch. 2 - Is the term vehicle density (as used in everyday...Ch. 2 - Prob. 10CQ

The average acceleration between 0 s and 4 s .

The average acceleration between 0 s and 4 s.

The average acceleration between 4 s and 5 s.

The average acceleration between 0 s and 5 s.

Whether the acceleration in (c) is equal to the sum of the accelerations in (a) and (b).

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Chapter 2 Solutions