847 Block C has a mass of 50 kg and is confined betwe two walls by smooth rollers. If the block rests on top of the 40-kg spool, determine the minimum cable force P neede to move the spool. The cable is wrapped around the spools inner core. The coefficients of static friction at A and B a == ΜΑ = 0.3 and 0.6. friction bet *8-48. Block C has a mass of 50 kg and is confined between two walls by smooth rollers. If the block rests top of the 40-kg spool, determine the required coefficien of static friction at A and B so that the spool slips at A and B when the magnitude of the applied force is increased P = 300 N. 000 A 0.4 m 000 Ο 0.2 m P B Probs 8-47/48