Homework Help: physics

Posted by jeff on Thursday, November 6, 2008 at 9:26pm.

a box whose mass is 0.3 kg is pushed against a spring(k=40n/m) on a horizontal surface and the spring is compressed 0.12m. The box is released and travels for 1.4 meters before coming to a stop. What is the coefficient of friction between the floor and the box? How fast was the box moving when it lost contact with the spring?

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