Question

A block of mass m1=20 kg is connected to a block of mass m2=30 kg by a massless string that passes over a light, frictionless pulley.The 30 kg block is conected to a spring that has negligible mass and a force constant of k=250 N/m. The spring is unsteached, and the inline is frictionless. The 20 kg block is pulled a distance h=20 cm down the incline of angle θ=40 degree and released from rest. Find the speed of each block when the spring is again unstretched

Answer 1

ok first try to come up with a diagram-
now try to use conservation of potential and kinetic energy