Home » Posts tagged 'ball and coin'

# Tag Archives: ball and coin

## Motion under gravity

When two bodies of two different weights(ex..an elephant n a boy) falling from certain height.. Both reaches the ground at the same time because gravity is independent of mass…but when we leave a leaf n a coin from a certain height coin reaches the ground first why?

It is the air resistance which plays the VILLAIN’s role here. The leave is affected more by the air resistance than the coin. In other words the magnitude of force exerted by gravity on ball is much greater than buoyant force and air resistance in the case of the coin whereas in the case of a leaf, the air resistance and buoyant force is comparable to its weight.

If these are dropped in a vacuum chamber, both will fall together and will take the same interval of time to reach the ground when dropped from the same height.

Please refer to the following videos

### Hits so far @ AskPhysics

• 2,215,783 hits

### CBSE Exam Count Down

AISSCE / AISSE 2020February 26, 2020
Board Exams for the core subjects of CBSE may start from 26 February (Class X) and 27 February (Class XII)