1) at the instant the block was released what was the gravitational potenetial energy with respect to the ground?

pe = mgh so 6kg x 9.81m/s2 x 55m = 323 j

2)calculate the kinetic energy of the block at the point of impact?

ke = 1/2mv2 so 6kg x 30m/s2 divided by 2 = 2700 j

3) how much mechanical energy was lost by the block as it fell?

how can i find the energy lost do i subtract the kinectic with the potential

4) explain what happened to the mechanical energy that was lost by the block?

how can i explain how the energy was lost was it because it was falling?