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Homework Statement
attached
Homework Equations
equation in the problem
k = 898 N/m
m = 90.7g = .0907kg
d = 27 inch = .6558m
g = 9.8 m/s
The Attempt at a Solution
h = [(898n/m)/(2)(.0907kg)(9.8m/s)](.6558m)^2  (.6558)
that is for the H. when computing this is got 217.55m. I am assuming the way the equation is written out for h in the problem that is how to set it up.
now it asks for velocity.
when it gets back to zero. We will say E1 = E2....
at E1 it is all potential energy and no kinetic. and at E2 where we find final velocity it is all kenetic and no potential?
so then we have mgh = 1/2 mv^2......
plus the top equation in for h
then isolate V and solve.
thanks for any help.
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