The block at point A is released from rest on a smooth track, which is one quadrant of a circle of radius 5m. It continues to move along a rough surface from point B to E and acquires a velocity of 8.6 m/s at point C. If its velocity at E is 2.25 m/s, calculate: a) velocity at B b) the coefficient of friction between the block and the surface B to E c) mass of the block, if the loss in KE between points D to C is 24.05 J d) velocity at D e) distance DE

The block at point A is released from rest on a smooth track, which is one quadrant of a circle of radius 5m. It continues to move along a rough surface from point B to E and acquires a velocity of 8.6 m/s at point C. If its velocity at E is 2.25 m/s, calculate: a) velocity at B b) the coefficient of friction between the block and the surface B to E c) mass of the block, if the loss in KE between points D to C is 24.05 J d) velocity at D e) distance DE