The graph shows the $x-$directed force $F_x$ acting on an object

as a function of the position $x$ of the object. For each

numbered interval given, find the work $W_i$ done on

the object.

from $x=0m$ to $x=2\mathrm{.}50m$

$W_1=$

from $x=3\mathrm{.}00m$ to $x=5\mathrm{.}70m$

$W_2=$

from $x=7\mathrm{.}00m$ to $x=8\mathrm{.}70m$