A 3-kg block has a speed of v= 4 m/s at point O as it travels along a rough incline OA with Hk=0.25. It then hits a spring with k=500 N/m at point A and eventually comes to a temporary stop. Let x be the deformation of the spring when the block reaches a temporary stop. v = 4 m/s 0 2 m weight of the block frictional force 1. Which of the forces acting on the block does NOT do work? 20° normal force force exerted by spring A KINETIC ENERGY of the block from point O to the lowest point

A 3-kg block has a speed of v= 4 m/s at point O as it travels along a rough incline OA with Hk=0.25. It then hits a spring with k=500 N/m at point A and eventually comes to a temporary stop. Let x be the deformation of the spring when the block reaches a temporary stop. v = 4 m/s 0 2 m weight of the block frictional force 1. Which of the forces acting on the block does NOT do work? 20° normal force force exerted by spring A KINETIC ENERGY of the block from point O to the lowest point