A record turntable is rotating at 33 1/3 rev/min. A watermelon seed is on the turntable 7.2 cm from the axis of rotation.
(a) Calculate the acceleration of the seed, assuming that it does not slip.
1 m/s2
(b) What is the minimum value of the coefficient of static friction between the seed and the turntable if the seed is not to slip?
2
(c) Suppose that the turntable achieves its angular speed by starting from rest and undergoing a constant angular acceleration for 0.35 s. Calculate the minimum coefficient of static friction required for the seed not to slip during the acceleration period.