A 120-mm-radius pulley of mass 5 kg is attached to a 30-mm-radius shaft which fits loosely in a fixed bearing. It is observed that motion of the pulley is impending if a 0.5-kg mass is added to block A. Determine the coefficient of static friction between the shaft and the bearing.

Transcribed Image Text:

30 mm B. 120 mm 10 kg 10 kg