How does one get the r" equation from r'?
r = distance
v = r' = ds/dt
a = r'' = dv/dt
chain rule, dy/dt = dy/dx * dx/dt
The Attempt at a Solution
I can easily get to r' from r using the chain rule but how do you derive r" from r'? How do you apply the chain rule when there are 3 variables (sec theta, tan theta and theta dot)?
Help would be appreciated.