Mechanical Energy example spring compression

The video tutorial explains how to solve a physics problem involving a block compressing a spring using energy methods. It covers the initial conditions, the application of energy conservation principles, and the breakdown of forces acting on the block. The tutorial includes drawing a free body diagram, analyzing kinetic, potential, and elastic energy changes, and solving the problem algebraically to find the initial velocity of the block.

How do you calculate the change in kinetic energy in this problem?

What values are assigned to H1 and H2 in this problem, and why?

Calculate the final velocity of the block at maximum compression of the spring.