(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A spring can be compressed 12 cm by an applied force of 6.0 N. A 2.8 kg box sliding along a frictionless surface approaches this spring at a speed of 1.9 m/s. How far will the spring be compressed when the box comes to a stop?

2. Relevant equations

E_{p = 0.5kx2 }

0.5mv^{2}= 0.5kx^{2}

3. The attempt at a solution

I worked out that k = 50 N/m

0.5mv^{2}= 0.5kx^{2}

0= 25x^{2 }

but this doesn't work out because x should be 0.45 m. help?

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# Homework Help: Physics 11 help please?

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