a) the potential energy of a football kept on the earth surface is zero give reason
b) cooking food is not considered as work done .give reason ✨
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Explanation:
The Potential energy is the energy by the virtue of the position of the body. where h is the height of the body. When the body is kept at the surface there height of the stone is equal to zero. hence, if the height of the stone is zero then Potential energy is equal to zero.
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