A spring has a rest length of 8 inches

and the spring constant is K = 4.5.

How much work is done stretching the spring

from a length of 10 inches to a length

of 17 inches?



Represent the amount of WORK as an integral.


Work = ab\displaystyle {\int_{{\text{a}}}^{{\text{b}}}}   dx

a = inches

b = inches

Then evaluate the integral. Work = inch*pounds