At Sea World, a seal of 33.0 kg slides down a ramp into the pool below. The top of the ramp is 1.50 m higher than the surface of the water, and the ramp is inclined at the angle of 30.0° above the horizontal. The seal reaches the water having a speed of 4.90 m/s.
(i) Determine the work is done by the kinetic friction?
(ii) Determine the coefficient of kinetic friction among the seal and the ramp?