To get the differential equation for the first situation I summed the forces and set them equal to ma: k(L-x)=ma
Then substituted in a=x'': kL-kx=mx''
From here i cheated a bit and used the Dsolve function of mathematica to find the position function of x at a time t...
Hello, this was a topic we were discussing in class, but its not mandatory to solve and not for credit so hopefully it's ok to post here:
So take a horizontal block of mass M on a spring with length L. If coordinate system is x is positive to the right and spring and block are to the right...