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

A block of mass 1 kg is forced against a horizontal spring of negligible mass, compressing the spring an amount x1= 0.2m. When released, the block moves on a horizontal tabletop a distance x2 = 1.0m before coming to rest. The spring constant k is 100 N. What is the coefficient of friction, μ, between the block and the table?

2. Relevant equations

K_{1}+ U_{1}= K_{2}+ U_{2}

fs= -kx

Kinetic energy = 1/2kv^{2}

Potential energy = mgh

3. The attempt at a solution

At x1 kinetic energy is 0 and potential energy is 1/2kΔx^{2}

So the total energy would be = 40.

However, I do not know how to tie this in with the coefficients of friction.

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# Homework Help: A spring and its coefficient

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