"Consider a 250 gram block on a 10 degree frictionless incline and in contact with a spring of constant 1.2 N/cm. If the block is launched from rest by the spring with an initial compression of 6cm, how fast is the block moving at the point of release from the spring? How fast is the block moving at 20cm away from the release? How far up the incline will the block slide before stopping?
KE = 1/2mv^2
PE = mgh
The Attempt at a Solution
First I converted everything to kg and m to make the answer easier. Then I took the equation for KE and rearranged it to be v^2= 2k/m, but the answer I got wasn't correct. I feel like I am almost there, or at least maybe on the right track, but I'm not sure. I've been working on this for a while and could really use the help. Thanks in advance!