1. The problem statement, all variables and given/known data A 15kg block is attached to a very light horizontal spring of force constant 500 N/m and is resting on a frictionless horizontal table. It is struck by a 3kg stone travelling horizontally at 8m/s to the right, whereupon the stone rebounds at 2 m/s horizontally to the left. Find the maximum distance that the block will compress the spring after the collision. 2. Relevant equations m1v1i + m2v2i = m1v1f + m2v2f ΔKE + ΔEE = 0 3. The attempt at a solution Using conservation of momentum I ended up with v2 final (the 15kg block) being 2 m/s. Then I plugged that into 1/2mv^2 - 1/2kx^2 = 0 and solved for x. I got 0.346m, is this correct?