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NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

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Application +4 | -1

A ring starts from rest and acquires an angular speed of

10\mathrm{ }rad{s^{ - 1}}

in 2s. The mass of the ring is 500 gm and its radius is 20 cm. The torque on the ring is

View answer and explanation

Correct option: C

0.10 Nm

Option C (0.10 Nm) is correct because the torque is calculated using the formula

\tau = I\alpha

, where I is the moment of inertia and

\alpha

is the angular acceleration.

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