A spring of negligible mass, suspended vertically from one end, is streched a distance of 20cm when a 5g mass is attached to the other end.The spring and maas are placed on a horizontal frictionless table, with the suspension point fixed.The mass is pulled away a distance 20cm beyond the equilibrium position 0 and released. Find:

(a)The differential equation and initial conditions describing the motion.

(b)The position at any time t.

(c)The amplitude, period and frequency of the vibration.

(a)The differential equation and initial conditions describing the motion.

(b)The position at any time t.

(c)The amplitude, period and frequency of the vibration.

## This question was asked on Mar 25, 2010.

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