1. The problem statement, all variables and given/known data A 65.0kg person, running horizontally with a velocity of +4.25 m/s, jumps onto a 12.0-kg sled that is initially at rest. 1) Ignoring the effects of friction during the collision, find the velocity of the sled and the person as they move away. 2) The sled and the person coast 35.0 m on a level snow before coming to a rest. What is the coefficient of kinetic friction between the sled and the snow? 2. Relevant equations M1V1 + M2V2 = MV' F=Ma 3. The attempt at a solution 1) I did 65(4.25)+ 12(0)= 77 V' That equaled 3.5876 m/s 2) This is what I had trouble with. I am not really sure where to go next. I know the velocity is 3.5876, the mass is 77kg, the distance traveled is 35m. How do I add friction into it? F=Ma does not seem like the right equation to use,do I not have the right equation?