Hi some help on the following problem would be very useful. The probem is based around a mass with two horizontal springs attached to it, one on either side. "A mass m = 1 kg is mounted between two identical springs of K = 100 N/cm" What is the portential energy of either spring if the mass is in position z? What is the kinetic energy of the mass? and what is the total enery Et" Any help would be appreciated. Regards, William.