Homework Help: Physics

Posted by Ame on Thursday, December 6, 2012 at 7:13pm.

The period of motion of an object-spring system is T = 0.474 s when an object of mass m = 296 g is attached to the spring.

(a) Find the frequency of motion in hertz.
_______Hz

(b) Find the force constant of the spring.
_______N/m

(c) If the total energy of the oscillating motion is 0.150 J, find the amplitude of the oscillations.
_______m

Physics - drwls, Thursday, December 6, 2012 at 8:09pm
(a) f = 1/T = 2.11 Hz

(b) 2*pi*f = 13.26 radians/s = sqrt(k/m)
m = 0.296 kg
Solve for k
(c) (1/2)kA^2 = 0.150 J
Solve for amplitude A, in meters

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