A belt of negligible mass passes between cylinders A and B and ispulled to the right with a force P. Cylinders A and B weigh, respectively, 5 and 20 lb. The shaft of cylinder A is free to slide in avertical slot and the coefficients of friction between the belt and eachof the cylinders are µs = 0.50 and µk = 0.40. For P = 3.6 lb, determine(a) whether slipping occurs between the belt and either cylinder,(b) the angular acceleration of each cylinder.

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?