A ball is thrown upwards from point A. It reaches up to point B and returns. What can be concluded?

Kinetic energy at A = kinetic energy at B

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Potential energy at A = potential energy at B

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Potential energy at B = kinetic energy at B

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Potential energy at B = kinetic energy at A

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Solution

The correct option is C Potential energy at B = kinetic energy at A
AT point A the body has kinetic energy only while at B it has potential energy only.
From work-energy theorem:
$K_{B} - K_{A} = V_{A} - V_{B}$
$0 - K_{A} = 0 - V_{B}$
Kinetic energy at A=potential energy at B

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