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A spring with a constant of $7 \frac{k g}{s^{2}}$ $7 (kg)/s^2$ is lying on the ground with one end attached to a wall. An object with a mass of $7 k g$ $7 kg$ and speed of $4 \frac{m}{s}$ $4 m/s$ collides with and compresses the spring until it stops moving. How much will the spring compress?

1 Answer

Sep 23, 2016

I found: $4 m$ $4m$

Explanation:

Have a look but check my maths:
enter image source here

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