A 8.60-kg block of ice, released from rest at the top of a 1.48-m-long frictionless ramp, slides downhill, reaching a speed of 2.88m/s at the bottom.
1. What is the angle among the ramp and the horizontal?
2. What would be the speed of the ice at the bottom if the motion were opposed with a constant friction force of 10.4N parallel to the surface of the ramp?