A mass m attached to the end of a spring on a frictionless horizontal plane is released from rest at t = 0 s from an extended position max. The mass m = 0.2 kg and k = 1 N/m. At wt = 5/4 with w angular frequency of the simple harmonic motion, the speed of the mass is measured to be 1.5 m/s. 1. What is the maximum speed of the motion? 2. What is Emax? 3. What is the angular frequency of the simple harmonic motion? 4. What is the total energy of the mass spring system?