1. The problem statement, all variables and given/known data A 500g block is attached to a spring on a frictionless horizontal surface. The block is pulled to stretch the spring by 10cm, then gently released. A short time later, as the block passes through the equilibrium position, its velocity is 1m/s. >A)What is the block's period of oscillation? >B)What is the block's speed at the point where the spring is compressed by 5cm? 2. Relevant equations T = 2(pi)sqrt(I/mgd) 3. The attempt at a solution I'm having troubles starting this problem. I'm thinking since it's 1m/s at it's equilibrium position (5cm) then it take 20seconds for half a cycle? That sounds completely wrong. I need some help.