Asked by Anonymous

A wheel of 40cm radius rotates on a stationary axle. It isuniformly speeded up from rest to a speed of 900 rpm in a time of20s. Find (a) the constant angular acceleration of the wheel and(b) the tangential acceleration of a point of a point on itsrim.
Answered by mesud hassen
a.4.7rad/s^2
b.1.9m/s^2