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An iron ball and a 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 is

1. Unequal
2. Exactly equal
3. Roughly equal
4. Zero

Correct answer: Exactly equal

Solution

In vacuum, all bodies fall with the same acceleration \(g\), independent of mass, size, or material. Since both balls are released from the same height with zero initial velocity, they take the same time to reach the ground.

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