Question

Rohan took two identical sheets of paper. He crumbled the first sheet into a tight
paper ball. He then dropped the crumbled paper ball and the paper sheet from
equal heights above the ground at the same time. He found that the crumbled ball
fell on the ground first)
(a) Which force did Rohan apply to crumble the paper sheet?
(b) Which force pulled tha paper ball towards the ground?
(c) Why the crumbled paper ball fall faster in comparison to paper sheet?

​

Answer 1

Answer:

(a) Rohan used muscular force to crumble the paper

(b) gravitational force pulled the paper down

(c) crumbled paper have less contact area so while falling the air resistance is very less compared to sheet of paper as it has more contact area