A cricket ball and a ping-pong ball are dropped from the same height in a vacuum chamber. When they have fallen half way down, they have the same:

velocity

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potential energy

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kinetic energy

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rest energy

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Solution

The correct option is A velocity
$v^{2} = u^{2} + 2 a s$
For both the bodies, $u = 0, a = - g$
Hence, $v$ is same.

Mass is different for a ping pong and cricket ball. Kinetic energy, potential energy and rest energy are functions of mass. Hence, they are different for the two balls.

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A cricket ball and a ping-pong ball are dropped from the same height in a vacuum chamber. When they have fallen half way down, they have the same:

The correct option is A velocityv2=u2+2asFor both the bodies, u=0,a=−gHence, v is same.Mass is different for a ping pong and cricket ball. Kinetic energy, potential energy and rest energy are functions of mass. Hence, they are different for the two balls.

The correct option is A velocity
$v^{2} = u^{2} + 2 a s$
For both the bodies, $u = 0, a = - g$
Hence, $v$ is same.

Mass is different for a ping pong and cricket ball. Kinetic energy, potential energy and rest energy are functions of mass. Hence, they are different for the two balls.