Solve the Problem $$L = \sqrt { \frac { 2 W } { k } }$$

Multiple Choice

Solve the problem.
-The length a spring is stretched from its natural length with work, W foot-pounds, is given by $$L = \sqrt { \frac { 2 W } { k } }$$

A) 28.1 foot-pounds
B) 41.7 foot-pounds
C) 91.7 foot-pounds
D) 183.4 foot-pounds