A block slides with constant velocity down an inclined plane that has slope angle T = 30. (a) Find the coefficient of kinetic friction between the block and the plane. (b) If the block is projected up the same plane with initial speed v0 = 2.5 m/s, how far up the plane will it move before coming to rest? What fraction of the initial kinetic energy is transformed into potential energy? What happens to the remaining energy? (c) After the block comes to rest, will it slide down the plane again? Justify your answer.