A body start from rest and falls freely under gravity.the velocity of body after 4 sec is
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We use the formula -
v=u+at
Here u=0(since initially the body was at rest)
a=9.8m/s^2
t=4sec
So v=0+(9.8*4)=39.2m/s
v=u+at
Here u=0(since initially the body was at rest)
a=9.8m/s^2
t=4sec
So v=0+(9.8*4)=39.2m/s
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