Question

Force=7-2x-3x² then for x=0 to 5 find out the work done

Answer 1

answer in the attachment

Hope it helps ❤

Answer 2

Answer:

Work done, W = -115 Joules

Explanation:

It is given that,

Force acting on the object, $F=7-2x-3x^2$

We need to find the work done from x = 0 to x = 5. The work done by the object is given by :

$W=\int\limits^5_0 {(7-2x-3x^2).dx}$

$W=|7x-x^2-x^3|_0^5$

$W=7(5)-(5)^2-(5)^3-0$

W = -115 Joules

So, the work done by the object is (-115 joules). Hence, this is the required solution.