1. The problem statement, all variables and given/known data The problem says: A small block of mass Mb = 0.5 kg is placed on a slab with mass Ms = 3.0 kg. Initially the slab is at rest and the block has a speed of V(initial)= 4m/s. The coefficient of kinetic friction between the block and the slab is .2 and there is no friction between the slab and the horizontal surface. At some moment later, before the block reaches the right end of the slab, both the block and the slab have the same speed Vfinal. A)Calculate Vfinal B) Calculate the distance the slab has traveled at the moment it reaches Vfinal C)Calculate the work done by friction on the slab from the beginning of its motion until it reaches Vfinal 2. Relevant equations 3. The attempt at a solution A) I tried 1/2 Mb vinital^2 = 1/2 Mb+s Vfinal^2 and i got 1.511 m/s but I feel like I missed a step with the friction. I don't know if it comes into play with the velocity.