a 0.75 kg mass on a spring is oscillating in a viscous fluid.  the net
force on the mass is F = -15x -.35V, wher x is the distance if the
mass from equilibrium, and v is the velocity of the masss.  Calculate
the period of the oscillation and the time it would take for the
amplityde of the oscillation to decay to one quarter of its initial
valude Make a careful graph of the position of the mass as a function
of time.

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Clarification of Question by diala-ga on 07 Oct 2004 18:59 PDT

I need an answer right away please