1. The problem statement, all variables and given/known data How to calculate initial tension or pretension in a system of two parallel springs. F=5.33213N K1+K2=53.0597 x=0.095 Individual springs have initial tension of 0.25N so I would expect an answer of 0.5N but I can't get there. 2. Relevant equations F=(k1+k2)x 3. The attempt at a solution Total force applied - Initial tension = (k1+k2)x Total force applied - (k1+k2)x = Initial tension = 0.29?