A small block of mass m slides on a horizontal surface where friction between the block and the surface is negligible as it travels around the inside wall of a hoop of radius R. The coefficient of friction between the block and the wall is me. The block is given an initial speed v tangent to the hoop and allowed to travel along the inside edge (a) The block is allowed to travel around the hoop for a time i At that moment the speed of the block is vs. The experiment is repeated but the initial speed of the block in the second trial is greater than wo. Will the speed of the block after a time i, be greater than, less than or equal to v? Justify your answer (b) Students derive the following equation for the speed of the block as a function of time: