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Standard XII

Physics

Throwing and Catching at Same Height

A man standin...

Question

A man standing on a high bridge over a creek throws a rock straight down. Just as he throws the rock he accidentally drops another rock . Neglecting air resistance, which statement best describes the situation just after the rocks reach the water?

The acceleration of the thrown rock is greater

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The acceleration of the dropped rock is greater

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The acceleration of both rocks is same

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The average velocity of both rocks is the same

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The final velocity of both rocks is the same

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Solution

The correct option is D The acceleration of both rocks is same
The acceleration of both the rocks is only due to the gravitational force acting on them. Even though the speed of thrown rock would be greater than that of dropped rock, the acceleration of both the rocks would be $g$ downwards.

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Consider the following statements
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A man standing on a high bridge over a creek throws a rock straight down. Just as he throws the rock he accidentally drops another rock . Neglecting air resistance, which statement best describes the situation just after the rocks reach the water?

The correct option is D The acceleration of both rocks is sameThe acceleration of both the rocks is only due to the gravitational force acting on them. Even though the speed of thrown rock would be greater than that of dropped rock, the acceleration of both the rocks would be g downwards.

The correct option is D The acceleration of both rocks is same
The acceleration of both the rocks is only due to the gravitational force acting on them. Even though the speed of thrown rock would be greater than that of dropped rock, the acceleration of both the rocks would be $g$ downwards.