CAN ANYBODY HELP?!?!

The number of centimeters, d, that a spring is compressed from its natural, uncompressed position is given by the formula

d(W)=√2W
____ - 9
0.2

models the number of centimeters, d(W), that a spring is compressed from its natural, uncompressed position. Find the amount of work needed, in joules, to move the spring.
a. 0.5 joules b. 5 joules c. 25 joules d. 2.5 joules

Question

CAN ANYBODY HELP?!?!

The number of centimeters, d, that a spring is compressed from its natural, uncompressed position is given by the formula

d(W)=√2W 
           ____ - 9 
           0.2

models the number of centimeters, d(W), that a spring is compressed from its natural, uncompressed position. Find the amount of work needed, in joules, to move the spring. 
a. 0.5 joules b. 5 joules c. 25 joules d. 2.5 joules

amistre64 · Answer

Work = F*d ; the force needed might be able to be calculated from this, but i cant see it yet

amistre64 · Answer

Hookes law plays into it somehow, unless im overthinking it

anonymous · Answer

i've been stuck on this for a while.. it's not b, i know that much