posted by Melissa .
A spring id vertically, as shown below, and a 500g mass is hung from its lower end. The EQUILIBRIUM extension of the spring is observed to be 10.0cm.
(1) What is the spring constant of the spring?
(B) If the is pulled down by 5.00cm and released, what is the frequency of the subsequent oscillations.
(C) What ist he velocity of the mass at time t=2.5 sec?
(D) What is the acceleration of the mass at time t=4.75 sec?
(E) What is the net force acting on the mass at time t=5.0sec?
(F) What are the potential and kinetic energies of the mass when the displacement 7 =-1.5cm?