PLEASE HELP! This question is freaking me out

Posted on 2017-05-30 18:33:00 in Physics by PAULO

Consider a system with two equal masses m= 2.0kg and a spring with spring constant k=100 N/m. The coefficient of kinetic friction between the left mass and the table is uk=0.25 and the pulley is frictionless. The systemis held with the spring at its relaxed length and then released. You can give the left mass a tiny kick to get it going whenever it is necessary. The gravitational acceleration is g=9.8m/s^2. 
(a). How far does the spring stretch before the masses come to rest?Assume that the static friction is large enough to keep the system at rest once it has stopped. 
(b) If the string is then cut, what is the maximal compression of the spring during the resulting motion?

---

Answer Comment

No Answers Posted Yet.