Posted by Helena Beau on Sunday, July 21, 2013 at 11:08am.
A block of mass M=6 kg and initial velocity v=0.8m/s slides on a frictionless horizontal surface and collides with a relaxed spring of unknown spring constant. The other end of the spring is attached to a wall. If the maximum compression of the spring is 0.2 m, what is the spring constant?
Physics - MathMate, Sunday, July 21, 2013 at 11:20am
Equate kinetic and potential (spring) energies:
Solve for k
(verify that quantities are in consistent units).
Physics - Helena Beau, Sunday, July 21, 2013 at 2:48pm
k= 294 N/m
But the correct answer is supposed to be 96 Nm.
Physics - Helena Beau, Sunday, July 21, 2013 at 3:52pm
Oh I see now. Thanks!
Physics :) - MathMate, Sunday, July 21, 2013 at 6:39pm
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