A teacher stands in the middle of a parking lot and watches a small child peddle a tricycle around the lot. At time t = 0, the child is due north of the teacher, traveling west. Thirty seconds later, the child is due west of the teacher, traveling south. What are the directions of the child’s (a) displacement, (b) average velocity, and (c) average acceleration? Express your answers in terms of these general directions: N of W, S of W, N of E, and S of E.

Question

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Answer 1

Textbook Question

Chapter 3, Problem 1CQ

A teacher stands in the middle of a parking lot and watches a small child peddle a tricycle around the lot. At time t = 0, the child is due north of the teacher, traveling west. Thirty seconds later, the child is due west of the teacher, traveling south. What are the directions of the child’s (a) displacement, (b) average velocity, and (c) average acceleration? Express your answers in terms of these general directions: N of W, S of W, N of E, and S of E.

(a)

Expert Solution

To determine

The direction of child’s displacement.

Answer to Problem 1CQ

The direction of child’s displacement is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 1

Displacement is the shortest distance between the initial and final positions. It is equal to the line joining the two points corresponding to child’s motion is the displacement. Therefore, the displacement is directed along south of west.

(b)

Expert Solution

To determine

The direction of child’s average velocity.

Answer to Problem 1CQ

The direction of child’s average velocity is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 2

Average velocity is defined as the rate of change of displacement. It’s direction is same as that of displacement. Therefore, the average velocity is directed along south of west.

(c)

Expert Solution

To determine

The direction of child’s average acceleration.

Answer to Problem 1CQ

The direction of child’s average acceleration is S of E.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 3

Average acceleration is defined as the rate of change of velocity. It’s direction is perpendicular to the line of displacement. Therefore, the average acceleration is directed along south of east.

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Answer 2

Textbook Question

Chapter 3, Problem 1CQ

A teacher stands in the middle of a parking lot and watches a small child peddle a tricycle around the lot. At time t = 0, the child is due north of the teacher, traveling west. Thirty seconds later, the child is due west of the teacher, traveling south. What are the directions of the child’s (a) displacement, (b) average velocity, and (c) average acceleration? Express your answers in terms of these general directions: N of W, S of W, N of E, and S of E.

(a)

Expert Solution

To determine

The direction of child’s displacement.

Answer to Problem 1CQ

The direction of child’s displacement is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 1

Displacement is the shortest distance between the initial and final positions. It is equal to the line joining the two points corresponding to child’s motion is the displacement. Therefore, the displacement is directed along south of west.

(b)

Expert Solution

To determine

The direction of child’s average velocity.

Answer to Problem 1CQ

The direction of child’s average velocity is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 2

Average velocity is defined as the rate of change of displacement. It’s direction is same as that of displacement. Therefore, the average velocity is directed along south of west.

(c)

Expert Solution

To determine

The direction of child’s average acceleration.

Answer to Problem 1CQ

The direction of child’s average acceleration is S of E.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 3

Average acceleration is defined as the rate of change of velocity. It’s direction is perpendicular to the line of displacement. Therefore, the average acceleration is directed along south of east.

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Answer 3

Textbook Question

Chapter 3, Problem 1CQ

A teacher stands in the middle of a parking lot and watches a small child peddle a tricycle around the lot. At time t = 0, the child is due north of the teacher, traveling west. Thirty seconds later, the child is due west of the teacher, traveling south. What are the directions of the child’s (a) displacement, (b) average velocity, and (c) average acceleration? Express your answers in terms of these general directions: N of W, S of W, N of E, and S of E.

(a)

Expert Solution

To determine

The direction of child’s displacement.

Answer to Problem 1CQ

The direction of child’s displacement is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 1

Displacement is the shortest distance between the initial and final positions. It is equal to the line joining the two points corresponding to child’s motion is the displacement. Therefore, the displacement is directed along south of west.

(b)

Expert Solution

To determine

The direction of child’s average velocity.

Answer to Problem 1CQ

The direction of child’s average velocity is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 2

Average velocity is defined as the rate of change of displacement. It’s direction is same as that of displacement. Therefore, the average velocity is directed along south of west.

(c)

Expert Solution

To determine

The direction of child’s average acceleration.

Answer to Problem 1CQ

The direction of child’s average acceleration is S of E.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 3

Average acceleration is defined as the rate of change of velocity. It’s direction is perpendicular to the line of displacement. Therefore, the average acceleration is directed along south of east.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

05:07

Answer 4

Textbook Question

Chapter 3, Problem 1CQ

A teacher stands in the middle of a parking lot and watches a small child peddle a tricycle around the lot. At time t = 0, the child is due north of the teacher, traveling west. Thirty seconds later, the child is due west of the teacher, traveling south. What are the directions of the child’s (a) displacement, (b) average velocity, and (c) average acceleration? Express your answers in terms of these general directions: N of W, S of W, N of E, and S of E.

(a)

Expert Solution

To determine

The direction of child’s displacement.

Answer to Problem 1CQ

The direction of child’s displacement is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 1

Displacement is the shortest distance between the initial and final positions. It is equal to the line joining the two points corresponding to child’s motion is the displacement. Therefore, the displacement is directed along south of west.

(b)

Expert Solution

To determine

The direction of child’s average velocity.

Answer to Problem 1CQ

The direction of child’s average velocity is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 2

Average velocity is defined as the rate of change of displacement. It’s direction is same as that of displacement. Therefore, the average velocity is directed along south of west.

(c)

Expert Solution

To determine

The direction of child’s average acceleration.

Answer to Problem 1CQ

The direction of child’s average acceleration is S of E.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 3

Average acceleration is defined as the rate of change of velocity. It’s direction is perpendicular to the line of displacement. Therefore, the average acceleration is directed along south of east.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

(a)

Expert Solution

To determine

The direction of child’s displacement.

Answer to Problem 1CQ

The direction of child’s displacement is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 1

Displacement is the shortest distance between the initial and final positions. It is equal to the line joining the two points corresponding to child’s motion is the displacement. Therefore, the displacement is directed along south of west.

(b)

Expert Solution

To determine

The direction of child’s average velocity.

Answer to Problem 1CQ

The direction of child’s average velocity is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 2

Average velocity is defined as the rate of change of displacement. It’s direction is same as that of displacement. Therefore, the average velocity is directed along south of west.

(c)

Expert Solution

To determine

The direction of child’s average acceleration.

Answer to Problem 1CQ

The direction of child’s average acceleration is S of E.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 3

Average acceleration is defined as the rate of change of velocity. It’s direction is perpendicular to the line of displacement. Therefore, the average acceleration is directed along south of east.

Answer 8

(a)

Expert Solution

To determine

The direction of child’s displacement.

Answer to Problem 1CQ

The direction of child’s displacement is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 1

Displacement is the shortest distance between the initial and final positions. It is equal to the line joining the two points corresponding to child’s motion is the displacement. Therefore, the displacement is directed along south of west.

Answer 9

(a)

Expert Solution

Answer 10

(a)

Expert Solution

Answer 11

Expert Solution

Answer 12

To determine

The direction of child’s displacement.

Answer 13

Answer to Problem 1CQ

The direction of child’s displacement is S of W.

Answer 14

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 1

Displacement is the shortest distance between the initial and final positions. It is equal to the line joining the two points corresponding to child’s motion is the displacement. Therefore, the displacement is directed along south of west.

Answer 15

(b)

Expert Solution

To determine

The direction of child’s average velocity.

Answer to Problem 1CQ

The direction of child’s average velocity is S of W.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 2

Average velocity is defined as the rate of change of displacement. It’s direction is same as that of displacement. Therefore, the average velocity is directed along south of west.

Answer 16

(b)

Expert Solution

Answer 17

(b)

Expert Solution

Answer 18

Expert Solution

Answer 19

To determine

The direction of child’s average velocity.

Answer 20

Answer to Problem 1CQ

The direction of child’s average velocity is S of W.

Answer 21

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 2

Average velocity is defined as the rate of change of displacement. It’s direction is same as that of displacement. Therefore, the average velocity is directed along south of west.

Answer 22

(c)

Expert Solution

To determine

The direction of child’s average acceleration.

Answer to Problem 1CQ

The direction of child’s average acceleration is S of E.

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 3

Average acceleration is defined as the rate of change of velocity. It’s direction is perpendicular to the line of displacement. Therefore, the average acceleration is directed along south of east.

Answer 23

(c)

Expert Solution

Answer 24

(c)

Expert Solution

Answer 25

Expert Solution

Answer 26

To determine

The direction of child’s average acceleration.

Answer 27

Answer to Problem 1CQ

The direction of child’s average acceleration is S of E.

Answer 28

Explanation of Solution

The free body diagram is given below.

College Physics (10th Edition), Chapter 3, Problem 1CQ , additional homework tip 3

Average acceleration is defined as the rate of change of velocity. It’s direction is perpendicular to the line of displacement. Therefore, the average acceleration is directed along south of east.