The wheels on a special bicycle have different radii R f and R b (Fig. P8.73). The

Question:

The wheels on a special bicycle have different radii R_fand R_b(Fig. P8.73). The bicycle starts from rest at t = 0 and accelerates uniformly, reaching a linear speed of 10 m/s at t = 9.0 s.?

(a) What is the bicycle???s linear acceleration?

(b) At t = 4.5 s, the angular speed of the back wheel is 11 rad/s, whereas the angular speed of the front wheel is greater by a factor of three. Find R_b and R_f.

Figure P8.73