A body moves from a point A to B under ...

A body moves from a point `A` to `B` under the action of a force shown in figure. What is the amount of work done ?

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Work done `=` area under `F-xgraph`
`=20xx1+((20++40)/(2))xx1+((40+30)/(2))xx1+30xx1`
`=20+30+30=115J`

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