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Find the time taken by the body projected vertically up with a speed of u,to return to the ground?
Since the body is projected with a velocity u and first equation of motion says V=U+ATUsing this eqn here, we can deduce that0=u-gt(velocity of objects is zero at top most position)=>u=gt=>t=u/gSince the body takes same amout of time to come down as it took to reach the top So, Total time=2u/g
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