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प्रश्न
A metal ball of mass 2kg is allowed to fall freely from rest from a height of 5m above the ground.
What the kinetic energy of the ball just before it hits the ground ?
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उत्तर
Kinetic energy of the ball just before hitting the ground =
Initial potential energy= mgh=2 x 10 x 5 = 100 J
संबंधित प्रश्न
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