If a feather, a rubber ball, and a wooden ball are falling freely simultaneously from the same height in a vacuum, then
- Athe feather will reach at the ground first
- Bthe rubber ball will reach at the ground first
- Cthe wooden ball will reach at the ground first
- Dall the three will reach at the ground together
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (d) all the three will reach at the ground together
Explanation
In a vacuum there is no air, so aerodynamic drag and buoyancy are absent and only gravity acts.
This is free fall, where acceleration equals g (9.8 m/s²) for every object regardless of mass or shape.
Since all bodies fall with the same g from the same height, they take equal time and land together.