I am a MSci Physics student and I am stuck on an integral I can't solve, for a problem that initially seems simple but turned out not to be.
ds(t)/dt = int(t1, t2) [K / s(t)^2]
K = constant. (t1, t2) are the limits.
I am not sure how to put formulae into here in a better way.
Basically I am trying to get a solution s(t) = ......
However s(t) is part of the problem.
To put it into physical terms, I am trying to integrate the force felt by a charged particle twice to get the distance it has travelled in time t2-t1.
Cheers for any help / pointing me in the right direction.
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Integration Problem watch
- Thread Starter
- 28-01-2010 01:10
- 28-01-2010 11:50
General way to solve these problems:
(in your case, f(s) = K/s^2). Writing v = ds/dt, we observe
(by the chain rule).
So in fact . You can solve this to find v as a function of s. So v = g(s) for some function g that you've (just) found. Since this is just , a second integration gives s as a function of t.