A particle of mass m = 0.10 kg and speed v0 = 5.0 m/s collides and sticks to the end of a uniform solid cylinder of mass M = 1.0 kg and radius R = 20 cm. If the cylinder is initially at rest and is pivoted about a frictionless axle through its centre, what is the final angular velocity (in rad/s) of the system after the collision?
A)8.1
B)2.0
C)6.1
D)4.2
E)10

Question

A particle of mass m = 0.10 kg and speed v0 = 5.0 m/s collides and sticks to the end of a uniform solid cylinder of mass M = 1.0 kg and radius R = 20 cm. If the cylinder is initially at rest and is pivoted about a frictionless axle through its centre, what is the final angular velocity (in rad/s) of the system after the collision? 
A)8.1 
B)2.0 
C)6.1 
D)4.2 
E)10

Quizplus · Accepted Answer

The Answer is D

A Particle of Mass M = 0