AP Physics 1 | Video solution of Ch 2 | P&C Exercises (Q27 - Q33) | James S. walker 5th Edition |

Hey viewers in this video I have discussed the PROBLEMS AND CONCEPTUAL EXERCISES (Q27 - Q33) of chapter 2 (One-Dimensional
Kinematics) from the book James S. Walker (5th Edition).
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Question Discussed :

PROBLEMS AND CONCEPTUAL EXERCISES (Chapter 2), Question 27 :
The position of a particle as a function of time is given by
x=2.0(m∕s)t+(−3 m∕s^3 ) t^3.
(a) Plot x versus t for time from t = 0 to t = 1.0 s. (b) Find the average velocity of the particle from t = 0.35 s to t = 0.45 s.
(c) Find the average velocity from t = 0.39 s to t = 0.41 s. (d) Do you expect the instantaneous velocity at t = 0.40 s to be closer to 0.54 m/s, 0.56 m/s, or 0.58 m/s? Explain.
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PROBLEMS AND CONCEPTUAL EXERCISES (Chapter 2), Question 29 :
On two occasions you accelerate uniformly from rest along an on-ramp in order to merge into interstate traffic at 65 mi/h. On-ramp A is 200 m long and on-ramp B is 400 m long. (a) Is your acceleration along on-ramp A greater than, less than, or equal to your acceleration along ramp B?
(b) Choose the best explanation from among the following:
I. The shorter acceleration distance on ramp A requires a greater acceleration.
II. In each case, you start from rest and have the same final speed.
III. The greater distance traveled on ramp B requires a greater acceleration.
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PROBLEMS AND CONCEPTUAL EXERCISES (Chapter 2), Question 31 :
At the starting gun, a runner accelerates at 1.9 m∕s^2 for 5.2 s. The runner’s acceleration is zero for the rest of the race. What is the speed of the runner (a) at t = 2.0 s, and (b) at the end of the race?
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PROBLEMS AND CONCEPTUAL EXERCISES (Chapter 2), Question 33 :
A car is traveling due north at 23.6 m/s. Find the velocity of the car after 7.10 s if its acceleration is
(a) 1.30 m∕s^2 due north, or
(b) 1.15 m∕s^2 due south.
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Timecode:
0:00 - Introduction
0:24 - Exercise of Ch -2, Q -27, James S. walker
5:38 - Exercise of Ch -2, Q -29, James S. walker
8:04 - Exercise of Ch -2, Q -31, James S. walker
10:57 - Exercise of Ch -2, Q -33, James S. walker
14:08 - Goodbye
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Presented By:
STEM Professionals

References : Physics book by James S. Walker (5th Edition)