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freak_boy186
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Homework Statement
A 50 g ice cube can slide without friction up and down a 30 degree slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 10 cm. The spring constant is 25 N/m. When the ice cube is released, what total distance will it travel up the slope before reversing direction?
Homework Equations
F = ma
W = Fdx
Ws = -1/2kx^2
The Attempt at a Solution
Ws = -1/2(25)(.1)^2 = 0.125J
V1 = [2(.125/.5)]^1/2 = .7071 m/s
F = .5(9.8)(sin30) = 2.45N
2.45/.5 = 4.9 m/s^2
(.7071)^2 = 2(4.9)ds
ds = .0510m = 5.1cm
apparently I'm incorrect in my reasoning...
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