23 Oct 2021
Problem 5
Page 42
Section: MisConceptual Questions
Chapter 2: Describing motion: Kinematics in one dimension
Textbook ExpertVerified Tutor
23 Oct 2021
Given information
- The first rock has fallen 4 m.
- The second rock is dropped after it.
- To find the velocities of the respective rocks.
Step-by-step explanation
Step 1.
Determine the correct option.
Release the first rock. It is in free fall.
Release the second rock. It is in free fall.
Freefall is moving with constant acceleration.
The (magnitude of) velocity of the first rock increases at a rate of 
The (magnitude of) velocity of the second rock, increases also at this rate.
So, (a) is valid.
b, c and d are not.
Unlock all Textbook Solutions
Already have an account? Log in