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

A bullet with mass 20 grams and velocity 100 m/s collides with a wooden block of mass 2 kg. The wooden block is initially at rest, and is connected to a spring with k = 800 N/m. The other end of the spring is attached to an immovable wall. What is the maximum compression of the spring?

2. Relevant equations

p=mv

K=.5mv^2

Spring potential energy = .5kx^2

3. The attempt at a solution

I tried doing M(bullet)V(initial) = [M(bullet) + M(block)][Vfinal], and then I used that final velocity in the energy equation .5mv^2 = .5kx^2 to find x. I keep getting the answer to be .49 meters, but this isn't correct.

What am I doing wrong?

Thanks!

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# Homework Help: Conservation of Momentum, Energy

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