i need help... A mass sitting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. 1.0 J of work is required to compress the spring by 0.15 m. If the mass is released from rest with the spring compressed, it experiences a maximum acceleration of 14 m/s^2. i need to find: a) The value of the spring constant. b) The value of the mass. if any one can help, i would really appreciate it.