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A man spend 6-4 KJ energy in displacing ...

A man spend 6-4 KJ energy in displacing a body by 64 m in the direction in which he applies force,in 2.5 s.Calculate :(i)the force applied,and (ii)the power spent (in H.P) by the man

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Given, energy, `E = 6.4 kJ = 6, 400 J`
Time t = 2.5 seconds
Displacemetn s = 64 m
Power `= ("Energy")/("Time") = (6400)/(1.5) = 256 0 W`
`= ( 2560)/(746) H.P.`
`= 3.43 H.P.`
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