Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

A 1 m beam hinged at one end just begins to lift when a force is applied at the other end. What condition is satisfied?
Options
A Net force is zero
B Clockwise moment equals anticlockwise moment
Correct Answer
C Acceleration is maximum
D Velocity is constant
Correct Answer

Option B is the correct answer.

Detailed Explanation

The beam lifts when torque produced equals opposing torque due to weight.

Hint

Turning effect about hinge.

Question Info