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 vacuum? Give reasons for your answer.
The coin reaches the ground first as compared to the piece of paper because it experiences lesser resistance from air than that felt by paper. If the coin and the piece of paper are dropped in vacuum, both of them will touch the ground at the same time.