Question

A coin and a feather are dropped together in a vacuum, then -

• A. the coin will reach the ground first.
• B. the feather will reach the ground first.
• C. both the bodies will reach the ground together.
• D. the feather will not fall down.

Answer 1

The correct option is C both the bodies will reach the ground together.

When there is vacuum, only gravitational force will act on both the bodies.

Acceleration due to gravity will be the same for both, so, they will reach ground together.

Hence, Time of fall is independent of mass of the body.