1. The problem statement, all variables and given/known data 1. An 85 g wooden block is set up against a spring. The block is pushed into the spring, compressing it a distance of 2.0cm and then released. k= 78N/m. What is the speed of the block when it reaches its initial point. 2. A 5.0kg crate slides down a smooth ramp that is elevated at an angle of 38 degrees. length of ramp= 2m. What will be the speed of the crate at the bottom of the ramp? 2. Relevant equations Us= .5kx^2 Ug= mgh KE=.5mv^2 3. The attempt at a solution 1. Us= .0156J? I don't know how to find its speed. Any help you can provide is appreciated. Thanks in advance.