Physics: Principles with Applications
Physics: Principles with Applications
6th Edition
ISBN: 9780130606204
Author: Douglas C. Giancoli
Publisher: Prentice Hall
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Chapter 2, Problem 50P

(a)

To determine

The instantaneous velocity at t=10sec

(a)

Expert Solution
Check Mark

Answer to Problem 50P

The instantaneous velocity at t=10sec is v=0.28m/s

Explanation of Solution

Given:

The given graph is shown below.

  Physics: Principles with Applications, Chapter 2, Problem 50P , additional homework tip  1

At t=10sec rabbit has traveled 3m

Formula used:

The instantaneous velocity is calculated as the slope of the tangent line to the curve.

Calculation:

The slope at t=10s is a line of rise/run. Thus, the instantaneous velocity is

  v(10)=14m50s=0.28m/s

Conclusion:

The instantaneous velocity at t=10sec is v=0.28m/s

(b)

To determine

The instantaneous velocity at t=30sec

(b)

Expert Solution
Check Mark

Answer to Problem 50P

The instantaneous velocity at t=30sec is v=1.25m/s

Explanation of Solution

Given:

The given graph is shown below.

  Physics: Principles with Applications, Chapter 2, Problem 50P , additional homework tip  2

The slope line rises to 25 m between t=17sto 37s

Calculation:

The instantaneous velocity is

  v(30)=25m0m37s17s=1.25m/s

Conclusion:

The instantaneous velocity at t=30sec is v=1.25m/s

(c)

To determine

The average velocity between t=0sec and t=5sec

(c)

Expert Solution
Check Mark

Answer to Problem 50P

The average velocity of the rabbit between t=0sec and t=5sec is 0.3m/s

Explanation of Solution

Given:

The given graph is shown below.

  Physics: Principles with Applications, Chapter 2, Problem 50P , additional homework tip  3

At t=5sec is rabbit traveled 1.5 m.

Formula used:

The average velocity is calculated as,

  v¯=ΔsΔt

Calculation:

The average velocity of the rabbit is

  v¯=1.5050=0.30m/s

Conclusion:

The average velocity of the rabbit between t=0sec and t=5sec is 0.3m/s

(d)

To determine

The average velocity between t=25sec and t=30sec

(d)

Expert Solution
Check Mark

Answer to Problem 50P

The average velocity of the rabbit between t=25sec and t=30sec is 1.6m/s

Explanation of Solution

Given:

The given graph is shown below.

  Physics: Principles with Applications, Chapter 2, Problem 50P , additional homework tip  4

At t=25sec , rabbit traveled 8m and at t=30sec , rabbit travelled 16 m.

Calculation:

The average velocity of the rabbit is

  v¯=16m8m30s25s=1.6m/s

Conclusion:

The average velocity of the rabbit between t=25sec and t=30sec is 1.6m/s

(e)

To determine

The average velocity between t=40sec and t=50sec

(e)

Expert Solution
Check Mark

Answer to Problem 50P

The average velocity of the rabbit between t=40sec and t=50sec is 1.0m/s

Explanation of Solution

Given:

The given graph is shown below.

  Physics: Principles with Applications, Chapter 2, Problem 50P , additional homework tip  5

At t=40sec , rabbit traveled 20 m and at t=50sec , rabbit travelled 10m

Calculation:

The average velocity of the rabbit is

  v¯=10205040=1.0m/s

Conclusion:

The average velocity of the rabbit between t=40s and t=50s is 1.0m/s

Chapter 2 Solutions

Physics: Principles with Applications

Ch. 2 - Can an object be increasing in speed as its...Ch. 2 - A baseball player hits a ball straight up into the...Ch. 2 - As a freely falling object speeds up, what is...Ch. 2 - Prob. 14QCh. 2 - You travel from point A to point B in a car moving...Ch. 2 - Prob. 16QCh. 2 - Prob. 17QCh. 2 - Prob. 18QCh. 2 - Prob. 19QCh. 2 - Prob. 20QCh. 2 - Describe in words the motion plotted in Fig. 2-32...Ch. 2 - Describe in words the motion of the object graphed...Ch. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Prob. 7PCh. 2 - Prob. 8PCh. 2 - Prob. 9PCh. 2 - Prob. 10PCh. 2 - Prob. 11PCh. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - Prob. 15PCh. 2 - A sports car accelerates from rest to 95 km/h in...Ch. 2 - Prob. 17PCh. 2 - Prob. 18PCh. 2 - 19.(II) A sports car moving at constant velocity...Ch. 2 - Prob. 20PCh. 2 - Prob. 21PCh. 2 - Prob. 22PCh. 2 - Prob. 23PCh. 2 - Prob. 24PCh. 2 - Prob. 25PCh. 2 - Prob. 26PCh. 2 - Prob. 27PCh. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - Prob. 31PCh. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 34PCh. 2 - Prob. 35PCh. 2 - Prob. 36PCh. 2 - Prob. 37PCh. 2 - Prob. 38PCh. 2 - Prob. 39PCh. 2 - Prob. 40PCh. 2 - Prob. 41PCh. 2 - Prob. 42PCh. 2 - Prob. 43PCh. 2 - Prob. 44PCh. 2 - Prob. 45PCh. 2 - Prob. 46PCh. 2 - Prob. 47PCh. 2 - Prob. 48PCh. 2 - Prob. 49PCh. 2 - Prob. 50PCh. 2 - Prob. 51PCh. 2 - Prob. 52PCh. 2 - Prob. 53PCh. 2 - Prob. 54PCh. 2 - Prob. 55PCh. 2 - Prob. 56PCh. 2 - Prob. 57GPCh. 2 - Prob. 58GPCh. 2 - Prob. 59GPCh. 2 - Prob. 60GPCh. 2 - Prob. 61GPCh. 2 - Prob. 62GPCh. 2 - Prob. 63GPCh. 2 - Prob. 64GPCh. 2 - Prob. 65GPCh. 2 - Prob. 66GPCh. 2 - Prob. 67GPCh. 2 - Prob. 68GPCh. 2 - Prob. 69GPCh. 2 - Prob. 70GPCh. 2 - Prob. 71GPCh. 2 - Prob. 72GPCh. 2 - Prob. 73GPCh. 2 - Prob. 74GPCh. 2 - Prob. 75GPCh. 2 - Prob. 76GPCh. 2 - Prob. 77GPCh. 2 - Prob. 78GPCh. 2 - Prob. 79GPCh. 2 - Prob. 80GPCh. 2 - Prob. 81GPCh. 2 - Prob. 82GPCh. 2 - Prob. 83GPCh. 2 - Prob. 84GPCh. 2 - Prob. 85GP
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