Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

A body released from rest and allowed to fall freely from a given height under gravity. What is the magnitude kinetic energy at its halfway point?
Options
A Half of its potential energy at the top
B Equal to its potential energy at the halfway point
Correct Answer
C Zero
D Maximum at that point
Correct Answer

Option B is the correct answer.

Detailed Explanation

At the halfway point, half the initial potential energy is converted to kinetic energy, so kinetic energy equals the potential energy at that height.

Hint

Use conservation of mechanical energy.

Question Info