1 . Write an expression for potential energy of an object with mass "a " placed at height h .
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kinetic energy=(1/2mv)2
when the object from a height is falling down kinetic energy will be 0 because velocity is 0 when the object is falling down continuosly the kinetic energy and the potential energy will gain equal energy thus
kinetic energy + potential energy=mechanical energy
when the object from a height is falling down kinetic energy will be 0 because velocity is 0 when the object is falling down continuosly the kinetic energy and the potential energy will gain equal energy thus
kinetic energy + potential energy=mechanical energy
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