Can anyone solve this question – InterviewSolution

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1.	Can anyone solve this question
Answer» ll is drop from a height then it's initial VELOCITY(u) is zero and H is 20m , a= +g ,use 2ND equation of motion , H=ut+1/2at^2 20=1/2×10×t^2 , 4=t^2 then t is 2 sec . when BALL hit the ground it's velocity is v =? use 1st EQN of motion V=u+at , V= 10×2 then V is 20m/sec

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