When body is at rest or rotating with uniform angular velocity it has _____?
JEST Past Papers / All — Multiple-choice practice
جب جسم آرام سے ہوتا ہے یا یکساں کونیی رفتار کے ساتھ گھومتا ہے تو اس میں _____ ہوتا ہے؟
- A. All of these
- B. Rotationally equilibrium
- C. Zero angular acceleration
- D. Zero torque
Correct answer
All of these
Explanation
Explanation Zero torque → No net torque is needed to maintain constant angular velocity or stay at rest. Zero angular acceleration → Uniform angular velocity means no change in angular speed. Rotational equilibrium → Occurs when net torque is zero, so the body is either at rest or rotating uniformly.
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