Question

a force of 20 N displaces a body through a distance of 1 metre at angle of 60 degree from its Own Direction calculate amount of work done if cos 60 degree is equal to half

Answer 1

As Work = F. D = FDCos(α)
where α= angle between the direction of applied force and displacement
Here, α= 60 degree , F = 20N, D= 1m
so. W = 20 x 1x cos(60) = 20*1/2= 10 joules..
Hope it helps..

Answer 2

here is your answr in this pic

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