The answers to the question are given but I'm confused on how to get them. A 10 kg box of ice slides down a ramp 20 m long inclined at 10 degrees to the horizontal. a) If the ramp is friction less, what is the acceleration of the block of ice? (1.7 m/s^2) b) If the coefficient of friction is 0.10, how long will it take the block to slide down the ramp if it starts from rest? (7.4 s) c) How far from the base of the ramp does the ice land if it is projected of the end of the ramp which is 4 m tall (8.8 m)