Question

9. A mass of 0.2 kg is attached to a spring of force constant
200 N/m and oscillates on a frictionless horizontal surface.
It is initially released from rest at a point 3.0 cm awayfrom
he equilibrium position (x0 = 0.03 m).
a) What is the initial potential energy, initial kineticenergy
and the total mechanical energy ?
b) What is the angular frequency of the oscillation ? ( Does
it change if it is released at x0 = 5.0 cm ?)
c) Where does the mass have the maximum speed ?
d) Where does the mass have the maximum acceleration ?