Answers

2016-03-08T13:04:01+05:30
mass = 110 kg
velocity (v) = 2 m/s
let, initial velocity = 0 m/s
therefor K.E = 1/2mv² = 1/2*110*4 = 220 J
now,
power = energy / time = 220/t  
time = ?
now
v = u + at
2 = 0 + 9.8t
2 = 9.8t
20/9.8 = t
2.04 sec = t
now power = 220/2.04 = 22000 / 204= 107.84 W

i hope it helps...........
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