I am stuck on an intergration and can't get a simple answer which i should get
p = (2*m*l^2)^(1/2)*(E+m*g*l*cos theta)^(1/2)
using small angle (need for question) cos theta = 1 - (theta^2 )/2
Then I intergrate from 0 to 2*Pi and get some very large eqn using a maths program, I can't...