Abowling ball has a mass of 5.5 kg and a radius of 12.0 cm. it is released so that
it rolls down the alley at a rate of 12 rev/s. find the magnitude of its angular
momentum.

The angular momentum of a rolling body is the product of the body's moment of inertia and its angular velocity.

where

What's the moment of inertia of this bowling ball?

Assuming that the ball is a solid sphere. For a solid sphere,

.

where

for this sphere. .

What's the angular momentum of this bowling ball?

.

.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.