- #1
daveed
- 138
- 0
allright, here is something i haven't been able to understand with just hooke's law
if i have an object traveling at velocity v, let's say, 4m/s , and hits a spring at, i don't know, k=2? so then we know how far the spring compresses and all because you just need to set the work done and kinetic energy equal, but what i have not been able to get is how long does it take for it to compress? because with a changing force(and so a changing acceleration), i don't understand how to find the time it takes to stop the thing
also, when your talking about a ball bouncing up and hitting a spring, the compression would not be the same as if it had happened on a horizontal surface, because gravity would also be doing work on the ball too, right?
if i have an object traveling at velocity v, let's say, 4m/s , and hits a spring at, i don't know, k=2? so then we know how far the spring compresses and all because you just need to set the work done and kinetic energy equal, but what i have not been able to get is how long does it take for it to compress? because with a changing force(and so a changing acceleration), i don't understand how to find the time it takes to stop the thing
also, when your talking about a ball bouncing up and hitting a spring, the compression would not be the same as if it had happened on a horizontal surface, because gravity would also be doing work on the ball too, right?