An object of mass 40 kg is raised, to a height of 5 m above the ground, what is its potential energy? If the object is allowed to fall, find its kinetic energy when it is half-way down
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At a height of 5 metre object has a potential energy of 2000 J. When this object is allowed to fall and it is Half way down its height above the ground will be half of 5 m= 5/2= 2.5m. Potential Energy at Half way down= 1000 joules.
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