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Kinetic Energy of a wood on a spring?

by Bottomsouth
Tags: energy, kinetic, spring, wood
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Bottomsouth
#1
Mar10-09, 07:50 AM
P: 27
1. The problem statement, all variables and given/known data

When a piece of wood is pressed against a spring and compresses the spring by 4.00cm , the wood gains a maximum kinetic energy K when it is released.

How much kinetic energy (in terms of K) would the piece of wood gain if the spring were compressed 20.0 cm instead? K_2 = ___K


2. Relevant equations

K=1/2mv^2

3. The attempt at a solution

How do I begin this problem?
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tiny-tim
#2
Mar10-09, 08:02 AM
Sci Advisor
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Thanks
tiny-tim's Avatar
P: 26,148
Hi Bottomsouth!
Quote Quote by Bottomsouth View Post
2. Relevant equations

K=1/2mv^2
No, the relevant equation is the equation for the energy of a spring, which is ?


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