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pech0706
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Homework Statement
A game uses a spring launcher to shoot a puck with mass of 0.5kg along a frictionless track as shown in the diagram. The spring has a k value of 600 N/m. By how much does the spring need to be compressed to launch the puck and have it go around the inside of the loop without falling off (ignore any spin of the puck)? What is the velocity of the puck as it reaches point C?
Homework Equations
a=v2/R
v2=gR
1/2mvo2=1/2mvB2+mgh
The Attempt at a Solution
I could not figure out how to solve this problem. I got v=2.2m/s using the second equation.
Thats all the farther i got.