**EXAMPLE 3: ****THE ANGULAR IMPULSE-MOMENTUM RELATION**

The
motor M applies a constant moment_{} to rotate the particle. If the particle of mass *m*=20 kg starts from rest and the motor
applies a moment _{}=10 N-m, calculate the speed of the particle after 10
seconds. Assume the particle is fixed to the bar at a radius of 0.1 m.

**Solution:**

_{}

_{}

_{}

_{}

substitution
into (1) gives

_{}