Question

When a piece of paper and a coin are dropped from the same height simultaneously. The coin reaches the ground first and paper takes some times in reaching to the ground. It we crumple up the piece of paper in the form of a ball and let the two drop from the same height again they reach the ground almost at the same time. Explain the science behind this activity

Answer 1

in first case the paper occupies more space and in second case it occupies less which reduces air resistance

Answer 2

increase knitec energy decrease potential energy