A torque of acts on a body of moment of inertia for

PHYSICS · Multi-part · A Level · Physics · Engineering physics · Engineering physics

Problem

A torque of

28 \text{ N m}

acts on a body of moment of inertia

3.2 \text{ kg m}^2

for

4.0 \text{ s}

. The body is initially at rest. (1) What is the final angular velocity? (2) What is the change in the rotational kinetic energy of the body?