Be sure to review Example 9.2 before attempting these problems. Part A A bicyclist starts from rest and begins riding down the street. After her wheels have rotated through ten revolutions, they have acquired an angular velocity of 13 rad/s. Determine the angular acceleration of her wheels. Express your answer in radians per second squared. a = 1.3 rad/s" Submit Previous Answers Correct VP9.2.2 Part B A grinding wheel is spinning with an initial angular velocity +wo. When its motor is turned off at t= 0, it begins to slow down with an angular acceleration -a. Derive an expression for the number of revolutions that the wheel will rotate through before coming to rest. Express your answer in terms of the variables wo and a, and the constant , VO AP mo Submit Request Answer VP9.2.3