Saturday
December 20, 2014

Homework Help: physics mechanics

Posted by njood on Saturday, October 26, 2013 at 7:51pm.

A 2 kg mass rests on a horizontal table with a light spring with a force constant of 200 Nm-1

attached to it. The coefficient of static friction between the mass and the table is 0.7 and the
coefficient of kinetic friction is 0.5. How far must the spring be stretched horizontally before the
mass begins to move and what is its initial acceleration when it does begin to move?

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