 #1
NickStar
 5
 0
 Homework Statement:

In two cases two weights are tied using a string, and one of them is also tied to a spring(k=50N/m). Two weights are released when the spring is not compressed.
1) What is the maximum strain of the spring
2) What is the speed of the weight which is tied to the spring when the strain is 10cm
I need to solve this for two cases
I solved the first one using energy laws(but I couldn't solve this using Hooke's Law and I didn't understand why) if you could solve the first one using Hooke's Law, I would be really thankful)
And I have no clue how to solve the second one
Everything there is written in Hebrew
 Relevant Equations:

K=1/2kx^2
deltaE=W