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December 20, 2014

Homework Help: physics

Posted by Austin on Tuesday, November 1, 2011 at 7:05pm.

One end of a massless coil spring is suspended from a rigid ceiling. It is found that when a 3.3 kg mass is suspended from it the spring stretches 105 mm when the mass comes to rest.
(a) What is the spring constant for the spring?
(b) If the mass is then pulled down an additional 165 mm (by hand) and released from rest at that point, what will be the speed of the mass when it passes through the spring-mass rest position (this is where the spring was stretched 100.mm by the stationary mass).

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