Abicycle has wheels of 0.70 m diameter. the bicyclist accelerates from rest with constant acceleration to 22 km/h in 10.8 s. what is the angular acceleration of the wheels?

Explanation:

Angular acceleration is defined as the variation of angular speed with respect to time:

The relation between the angular speed and the linear speed is given by:

Replacing (2) in (1):

We need to convert to :

Recall that:

Replacing:

answer; ///(74) degrees is your answer..

real, smaller and upside-down.   so the answer should be b.