I would love it if someone helped me out on this problem!!! So, we have two identical masses. mass 1 can only move horizontally on a smooth surface, and mass two can only move vertically. These two masses are connected by a spring of constant k and the rest length of the spring is L. There is no friction. The spring is a directly connected, so it looks like the spring goes through the table, but it really doesnt... I am looking for the forces on both blocks so I can write Newton's equations. I know that they both have a spring force applied, and the vertical block has gravity... but that is where I get stuck. Please help!!