Please help me clarify my answers. Please provide the Given (e.g. Vi/ Initial Velocity, Xf, Xi, Vf) and a detailed solution.

3. A ball on a wet road is given an initial speed of 15.2 m/s. If the ball slides 75.0 m across the road before coming to rest, determine the coefficient of kinetic friction between the ball and the road. Express your answer with 3 significant figures. 4. A 17-kg crate is released from rest from the top of an incline plane that 5.0 m long and makes an angle of 40.0". How long will it take for the crate to reach the bottom of the incline if a 60.0 Newton frictional force impedes the motion of the crate. Express your answer with 3 significant figures