A 6.5 kg stone is tied to a 4.5 m long string and swung around a...

Question

Question

Answer 1

Answer #1

Stone is rotating at constant angular velocity.

Angular acceleration is rate of change of angular velocity with respect to time.

Hence angular acceleration = 0

We know that : Magnitude of torque = mass moment of inertia * angular acceleration.

Magnitude of torque = 0.

Because angular acceleration = 0.

Answer 2

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