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## Homework Statement

A block sliding along a horizontal frictionless surface with speed v collides with a spring and compresses it by 2.34 cm. What will be the compression if the same block collides with the spring at a speed of 4.00v?

## Homework Equations

e=0.5mvSUP]2[/SUP] e= 0.5k*x

^{2}

## The Attempt at a Solution

i thought abt equating the two and solving it in regards but there are too many unknown values to cancel them out...and also to find a way to make a connection btw the given information.

my next thought was to times the given compression by 4 since the speed is also increased but that proved to be wrong..pls. help