2. A 3.4 kg is attached to a spring. A force of 230 N compressed the spring 3.2 m from the equilibrium position. (a) What is the maximum acceleration of the mass? (b) What is the maximum velocity of the mass? (c) What is the velocity of the mass at a distance of 1.4 m from the equilibrium position? (d) What is the potential energy of the mass at this position (c)? 3. A simple pendulum on earth released at an angle of 48 with the vertical completes a cycle in 4.3 s. Calculate the (a) length of the string; (b) frequency; (c) maximum velocity, and; (d) velocity at an angle of 10 with the vertical