Torque acting on a body determines_______________?
Correct answer: C. Angular acceleration
- A. Acceleration
- B. Linear acceleration
- C. Angular acceleration
- D. Direction of motion of the body
Explanation
Torque is the rotational analogue of force and produces angular acceleration according to τ = Iα, where τ is torque in N m, I is moment of inertia in kg m², and α is angular acceleration in rad s^-2. It does not directly determine linear acceleration unless the body's rotation is linked to translation. Students may choose b by applying Newton's second law, F = ma, to a rotational situation.
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About Angular and Linear Quantities
Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
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