Velocity and Acceleration at Maximum Compression (help, test tomorrow??)! 1. The problem statement, all variables and given/known data A 300g ball compresses a spring 1 cm when just sitting on it (no motion). The ball is dropped onto the spring from 25 cm above the spring at equilibrium. How much will the spring compress as it stops the ball? At that maximum compression, what is the velocity and acceleration of the ball? 2. Relevant equations W= 1/2(m)(delta X)^2 PE= mgh 3. The attempt at a solution I got W=.0015 from 1/2(3)(.01)^2 and .7358 PE from .3(9.81)(.25) I can't find the velocity, but acceleration I attemped F=ma and got stuck there lol.