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A block of mass m is pushed against a spring of spring
constant k fixed at one end to a wall. The block can slide
on a frictionless table as shown in figure (8-W6). The
natural length of the spring is L, and it is compressed
to half its natural length when the block is released. Find
the velocity of the block as a function of its distance x
from the wall.
Figure 8-W6

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