Answer to Question #55021 in Quantum Mechanics for Ntia

Question

A 15kg block rests on the surface of a plane inclined at an angle of 30 degrees to the horizontal. A light inextensible string passing over a small, smooth pulley at the top of the plane connects the block to another 13kg block hanging freely. The coefficient of kinetic friction between the 15kg block and the plane is 0.25. Find the acceleration of the blocks.