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Stone-1 is dr...

Question

Stone-1 is dropped from the roof of a building, after 4 seconds Stone-2 is dropped from the same roof. Which of the following is/are correct?

A

Stone-2 will reach the ground 4 seconds after Stone-1.

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B

Stone-2 will reach the ground 4 seconds before Stone-1.

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C

Both the stones will hit the ground at the same time.

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D

Impossible to determine.

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Solution

The correct option is A
Stone-2 will reach the ground 4 seconds after Stone-1.

Both the stones after being dropped will accelerate at the same rate $g$ (i.e they will gain velocity at the same rate) as the acceleration due to gravity 'g' is constant.

Starting from the instant each stone is released, it takes equal time interval to reach the ground. So, stone-2 will reach the ground 4 seconds after stone-1.

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