a ball of mass 2 kg is dropped from a height. what is the work done by its weight in two second after the ball is dropped
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Given - a ball of mass 2kg
Method - 2kg×2kg=4kg
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joyashrib:
Work done equals to the product of forse applied and displacement produced
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Mass = 2kg
time= 2 sec
h=ut +1/2gt²
h=0+1/2×10×2×2
h=20 m
therefore work=Energy
work=mgh
work=2×10×20
work=400 j
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