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