SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A crumpled piece of paper hits the ground before a flat sheet of paper because
A
the acceleration of gravity is greater on the crumpled paper.
B
there is more air resistance against the flat paper.
C
the crumpled paper is more massive
D
the crumpled paper is less massive.
Explanation: 

Detailed explanation-1: -the acceleration of gravity is greater on the crumpled paper. there is more air resistance against the flat paper. the crumpled paper is less massive.

Detailed explanation-2: -The flat piece falls more slowly because it has a larger area than the crumpled piece. So more air gets trapped under it and slows it up. This is called ‘Air Resistance’.

Detailed explanation-3: -When a sheet of paper is crumbled into a ball, its surface area decreases. Hence, it experiences less air resistance to its motion and it falls faster than the sheet of paper.

There is 1 question to complete.