A body of mass 10kg falling freely from a height at 40m. Find the velocity of the body after 2s and also find the time taken by the body to reach the ground.
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A body falling from a high Minaret travels 40m in the last 2 seconds of its fall to ground. Height of Minaret in metres is(take g = 10m/s^2 )
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. ANSWER .
v²=u²+2as
v=√0+2×10×40
=20× 1.4
= 28m/s
v=u+at
t=28/10
=2.8 seconds
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