Assertion-Reason on Equilibrium of a Body – Rankers Physics

Torque: Practice Problem & Solution

Assertion: A body is in translational equilibrium if the net force on it is zero. Reason: A body is in rotational equilibrium if the net torque on it about any one point becomes zero.  
Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true but Reason is not correct explanation of Assertion.
Assertion is true but Reason is false.
Assertion is false and Reason is true.

Solution Explained:

To solve this problem, we apply the core principles of Torque. Understanding the underlying formula is key to arriving at the correct answer below:

Translational equilibrium requires net force to be zero. Rotational equilibrium requires net torque to be zero. Both statements are true but independent definitions.

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Similar Practice Questions

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1. Assertion (A): A ballet dancer increases or decreases the angular velocity of spin, about the vertical axis by pulling in or extending out her limbs. Reason (R): \(L = I\omega\) which is constant about rotational axis where symbols have their usual meaning.  
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