Solve the problem.The number of centimeters, d, that a spring is compressed from its natural, uncompressed position is given by the formula d = 
, where W is the number of joules of work done to move the spring and k is the spring constant. Solve this equation for W. Use the result to determine the work needed to move a spring 2 centimeters if it has a spring constant of 0.6.
A. W = 2d2k; 4.8 joules
B. W = 
; 13.3 joules
C. W = 
; 0.4 joules
D. W = 
; 1.2 joules
Answer: D
Mathematics
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?
?
A. 
B. ?
C. ?
D. ?
E. ?
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