- #1
alfredo24pr
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Homework Statement
A "mass less" spring has a length of 0.350 m in its relaxed position. It is compressed to 70.0 percent of its relaxed length, and a mass M= 0.150 kg is placed on top and released from rest. Find the spring constant
Homework Equations
mgh=1/2kx2
The Attempt at a Solution
mgh=1/2kx2
2mgh/x2=k
k = 2(0.150)(9.8)(0.350) / 0.105(sqrd)
the 0.105 comes from (0.350 - 70% of 0.350)
Am I doing something wrong?