- #1
ChloeYip
- 93
- 1
Homework Statement
A spring of negligible mass has force constant k = 1800 N/m .
You place the spring vertically with one end on the floor. You then lay a 1.30-kg book on top of the spring and release the book from rest. Find the maximum distance the spring will be compressed.
Homework Equations
Potential energy of spring: 0.5kx^2
Potential engergy by gravity: mgh
The Attempt at a Solution
mgx = 0.5kx^2
mg = 0.5kx
x=0.01417m(take g=9.81)
But the answer is 12cm, what's wrong with my approach?
How can I obtain the correct answer?
Thank you.