Question

The force applied against a moving object travelling on a linear path is given by `F(x)=1+xe^x`. How much work would it take to move the object over `x in [3,7]`?

Answer 1

`W=6e^7-2e^3`

Explanation:

`W=int _3^7 (1+x e^x )d x`
`W=[e^x(x-1)]_3^7`
`W=[e^7(7-1)]-[e^3(3-1)]`
`W=6e^7-2e^3`