The Attempt at a Solution
This was a solution to my problem i found on internet ...
I found w2 correctly like in solution ... but then when i thought that that net force will be force due to rod (F) - mg cos37 ... along rod ...
and mg sin37 perpendicular to rod ...
F - mg cos37 = (dm)w2L = .9 (dm) g
mgsin37 = (dm) g (3/5)
But i'm wrong !!!
And please someone explain me what is written in solution after finding w2 ... i cant understand it :tongue2:
I got what they have written in answer ... they used τ = αI to find α
they used to find (dm) (dv/dt) = (lα)(dm) ie tangential force ... now i need to know .. why i am wrong in my way ??? ....
100 KB Views: 471
45.3 KB Views: 438