JEE Physics · Medium

Rigid Body Dynamics: Torque Calculation MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Torque CalculationMediumQuestion 30311

Question

A force of 10 N acts at the end of a 0.5 m lever arm perpendicular to the arm. The torque about the pivot is:
  1. A
    5 N·m
    Correct
  2. B
    10 N·m
  3. C
    20 N·m
  4. D
    0.5 N·m

Correct answer

5 N·m

Explanation

τ = F × r = 10 × 0.5 = 5 N·m.