Posted by **james** on Wednesday, November 3, 2010 at 9:44pm.

A person is riding a bicycle, and its wheels have an angular velocity of +15.5 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is +15.5 revolutions.

(a) How much time does it take for the bike to come to rest?

in ses

(b) What is the angular acceleration of each wheel?

in rad/sec2