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January 30, 2015

January 30, 2015

Posted by **Anonymous** on Thursday, November 5, 2009 at 11:43pm.

A second mass, m2 = 6.71 kg, is slowly pushed up against mass m1, compressing the spring by the amount A = 0.201 m

The system is then released, and both masses start moving to the right on the frictionless surface. When m1 reaches the equilibrium point, m2 loses contact with m1 and moves to the right with speed v. Determine the value of v.

- phsyics -
**drwls**, Friday, November 6, 2009 at 5:58amAt the spring's equilbrium point, all of the stored potential energy of the compressed spring becomes kinetic energy of both masses. No further force is applied by the spring at that instant, and then the masses separate as the spring force reverses direction.

The V (of both masses) at that instant is given by

(1/2) k A^2 = (1/2)(m1 + m2) V^2

Solve for V

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