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 the paper ball towards the ground?
(c) Why the crumbled paper ball fall faster in comparison to paper sheet?
(d) State any one factor on which fluid friction depends.​

Answer 1

Answer:

Ans-a) Rohan applied frictional force to the papar ball

Ans-b) Gravitational force pulled the paper ball towards the ground.

Ans-c) A crumbled paper ball is faster than in comparison to the papar sheet because crumbled paper is heavy than the paper sheet.

Ans-d) Fluid friction depende on shape,size,speed of the object.

Explanation:

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