The car shown above with mass M is turning to the left with an uniform angular speed W on a circular path with radius R. When the angular speed is increased to a critical value C, one of the normal forces vanishes. If W is increased beyond C, the car will roll over, explain why.
I did some calculations and found C = sqrt(gl/hR). However I ran into some troubles explaining why it will roll over. By the free body diagram shown below
When N1 =0, Fs1 =0 and taking moment about center of mass, the only forces are Fs2 and N2, however unless l is significantly smaller than h, by the free body diagram, the car will actually lean in since N2 > Fs2?