Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

An object is released from rest and falls in the absence of air resistance. Which of the following is true about its motion?
Options
A Its acceleration is zero
B Its acceleration is constant
Correct Answer
C Its velocity is constant
D Its acceleration is increasing
Correct Answer

Option B is the correct answer.

Detailed Explanation

In free fall without air resistance, acceleration is constant and equal to gravitational acceleration.

Hint

Recall Galileo's law of free fall.

Question Info