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Posted by on Sunday, November 21, 2010 at 10:20pm.

A 0.2 kg object that stretches a spring 6.5 cm
from its natural length when hanging at rest
oscillates with an amplitude of 1.5 cm.
The acceleration of gravity is 9.81 m/s2.
Find the total energy of the system.

  • Physics - , Sunday, November 21, 2010 at 10:26pm

    The spring constant is
    k = 0.2*9.81 N/0.065 m = 30.18 N/m

    Total energy = (1/2) k A^2
    where A is the amplitude, 0.015 m

  • Physics - , Sunday, January 9, 2011 at 3:22pm

    120.3

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