Problem -225UP4 A spring with one end fixed at the wall is connected 1o a block of mass m = 0.0650 kg. The whole system is placed on a frictionless able. The motion of the mass can be described as x = Acosiul + ) shown below, 15 xlem) [] =15 0.0 0.05 0.0 015 020 0.25 Thme (s) Find (a) the period T, (bl the amplitude A, (c) the initial phase , (d) the force constant & of the spring. (e) the phase of the motion at = 0,45 s, (f) the displacement at r = 0.45 5. (g) What fraction of the oscillator's energy is kinetic at f = 045 57 (h) If the motion is expressed as o) = Boos(ef) + Csin(wf), findd B and