Use your critical understanding and the approach mentioned above to study the oscillation of the contraption shown in this figure. The spring is 5 cm at its natural length. When at equilibrium (e.g. figure here) its length is 50 cm. The cart's mass is 273 gr and the hanging weight is 300 gr. Use the methodology described herein (this manual i.e. section 1). Qia) Derive theoretical period as a function of the two masses and the spring constant (no air resistance or friction)