Question

A wooden ball and a rubber ball of same radius are released from a height h in vaccum the ball which will reach the ground level first is?​

Answer 1

The iron ball and wooden ball when released from the same height in vacuum will reach the ground exactly, under the action of gravity, at the same time due to the lack of air resistance.

Galileo statement:

In the absence of air resistance, all bodies fall at the same acceleration, approx equal to 9.8m/s2.