Posted by **Jeann** on Wednesday, November 17, 2010 at 5:34pm.

A 7 kg block slides on a horizontal frictionless surface with a speed of 1.2 m/s. It is brought momentarily to rest when it hits a bumper that cmopresses a spring. The acceleration of gravity is 9.8m/s^2.

How much is the spring compressed if its force constant is 3kN/m?

Answer in units of m.

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