suppose a yo-yo has a center shaft that has a 0.250 cm radius and that its string is being pulled. (a) If the string is stationary and the yo-yo accelerates away from it at a rate of 1.50 m/s2, then the angular acceleration of the yo-yo is Fill input: rad/s2. (b) The angular velocity after 0.750 s if it starts from rest is Fill input: rad/s. (c) The outside radius of the yo-yo is 3.50 cm. The tangential acceleration of a point on its edge is Fill input: m/s