a ball of mass 100g dropped from a height and reaches ground in 4sec.After hitting the ground,it rebounds with 80%of its K.E. .Find the height at which ball reaches after rebound.Pls someone send exact answer of this question.
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Which class question is this ??
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Answer:
Height will be 10 cm
Step-by-step explanation:
Use K.E formula 1/2mv2 u will get 800J as K E
Then using s= ut + 1/2at2 u will get your answer
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