1. The problem statement, all variables and given/known data | Mass 1: 2kg | -------- | Mass 2: 3kg | ----------> 15N 2 blocks are connected by a massless spring on a horizontal frictionless plane. The left block has a mass of 2kg and the right block has a mass of 3 kg. There is a force pulling Mass 2 to the right with a force of 15N. Spring Constant = 130N/m 2. Relevant equations Fspring = -kx 3. The attempt at a solution So I subbed in k into the equation. Fspring = -130x At this point I don't know what to do next. I've tried subbing 15N for Fspring but then I'll get a negative x value. Am I missing another equation that I'm supposed to use or a value that I'm supposed to find?