Question: A mass m = 2.84 kg is placed at the top of an inclined plane of length L = 2.71 m. The plane is inclined at an angle of 6 = 28.3 . The coefficients of friction between the mass and the plane are Ms = 0.284 and Mk = 0.264. Figure 1: Diagrammatic representation of a block of mass m placed at the top of an inclined plane. The plane is of length L and is inclined at 6 degrees to the horizontal. The plane slopes down from left to right. Part 1) What is the potential energy of the mass at the top of the plane? Take its potential energy to be 0 at the bottom of the plane. Uf= J Part 2) How much work is done by the frictional force as the block slides down the inclined plane? We J Part 3) What is the speed of the block at the bottom of the slope? U : m/S