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Find the work done in pulling and pushin...

Find the work done in pulling and pushing an object through 200 m horizontally when a force of 1000 N is acting along a chain making an angle of `60^(@)` with ground. Assume the floor to be smooth friction less surface.

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Force, F = 1000 N
Displacement, s = 200 m
Angle `theta = 60^(@)`
Workdone = ?
Workdone W = Fs cos `theta`
`=1000xx200xx cos 60^(@)`
`= 1000xx200xx(1)/(2)`
`=1xx10^(5)J=1xx10^(2)kJ`
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