Homework Help: physics

Posted by Anonymous on Monday, March 18, 2013 at 5:17am.

In an arcade game a 0.099 kg disk is shot
across a frictionless horizontal surface by compressing it against a spring and releasing it.If the spring has a spring constant of 244 N/m and is compressed from its equilibrium position by 4 cm, find the speed with which the disk slides across the surface.
Answer in units of m/s

physics - Elena, Monday, March 18, 2013 at 10:20am
kx²/2 = mv²/2
v=sqrt(kx²/m)=sqrt(244•16•10⁻⁴/0.099) =...

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