Question

A coin and a piece of paper are dropped simultaneously from the same height. Which of the two will touch the ground first? What will happen if the coin and the piece of paper are dropped in a vacuum? Give reasons for your answer.

Answer 1

If a coin and a piece of paper are dropped simultaneously from the same height in the air, then the coin will touch the ground first and the paper will touch later. Because the paper will experience an air resistance due to its lightweight whereas coin has more weight, so air resistance won't affect coin.

But if the same coin and paper are dropped simultaneously in a vacuum then both the coin and the paper will reach the ground at the same time, because in a vacuum there will not be any kind of air resistance and gravity will take them both down at the same time.