Question

An iron ball and wooden ball of the same radius are released from a height $H$ in vacuum. The time taken by both of them to reach the ground are

• A. roughly equal
• B. unequal
• C. exactly equal
• D. in the inverse ratio of their diameters

Answer 1

Answer: (C)

exactly equal

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 $9.8m/s^2$.