6. a) A 5kg block is released from a height of 2m on a 53 inclined plane. When it reaches the bottom of the inclined plane, its velocity is seen to be 4m/s. Find the coefficient of kinetic friction between the block and the inclined plane. b) After reaching the bottom of the inclined plane, the block continues to slide along a horizontal plane. The coefficient of kinetic friction between the block and the horizontal plane is 0.5 . At what distance on the horizontal plane will the block stop? ( points) u2=y02=2as42=2a(sin532)a=3.2m/s2