Question Detail

PHY 101 Rotational Motion Objective Question

Question

What is the torque due to a force of 10 N applied perpendicularly to the end of a lever arm of length 0.5 m?
Options
A 0.5 N m
B 5 N m
Correct Answer
C 10 N m
D 20 N m
Correct Answer

Option B is the correct answer.

Detailed Explanation

When the force is perpendicular, the torque is calculated as τ = rF. Here, r = 0.5 m and F = 10 N, so τ = (0.5 m)(10 N) = 5 N m.

Hint

Since the force is perpendicular, use the simplified formula τ = rF.

Question Info