Question Detail

PHY 101 Kinematics in One Dimension Objective Question

Question

Which of the following statements is true for an object undergoing constant acceleration motion in a straight line?
Options
A Its velocity remains constant.
B Its acceleration changes at a constant rate.
C Its instantaneous acceleration is always equal to its average acceleration.
Correct Answer
D Its position varies linearly with time.
Correct Answer

Option C is the correct answer.

Detailed Explanation

By definition, constant acceleration means the acceleration does not change. Therefore, the acceleration at any instant (instantaneous acceleration) is the same as the acceleration over any time interval (average acceleration).

Hint

What does it mean for a quantity to be 'constant'? How does that relate to its instantaneous and average values?

Question Info