A 4.4-kg block is attached to a spring with a force constant of 550 N/m, as show

Question

A 4.4-kg block is attached to a spring with a force constant of 550 N/m, as shown in the figure.

http://www.webassign.net/walker/08-17new.gif

(a) Find the work done by the spring on the block as the block moves from A to B along paths 1 and 2.
Path 1 __ J?
Path 2 __J?

(b) How do your results depend on the mass of the block? Specifically, if you increase the mass, does the work done by the spring increase, decrease, or stay the same? (Assume the system is frictionless.)
-a.The results are related to the square of the mass.
-b.The results are linearly dependent on mass.
-c.The results are related to the square root of the mass.
-d.The results are independent of mass.

Explanation / Answer

a) W = 0.5kx2 = 0.5 x 550 x 0.022 = 0.11

same for both the paths

b)-d.The results are independent of mass.

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