Akash Kumar Dutta
Last Activity: 12 Years ago
Dear Prakhar,
Let (o) represent theta.
Radius of curvature is given by=>R=v^2/gcos (o).
and vcos(o)=u/2.
R(min)=u^2/4g
using these three eq. we get (o)=30 degree.
Hence (a) option is wrong
And v=u/3^1/2
Hence option(c),(d) are also wrong.
The ans is...(a),(c),(d)
ANS
Regards.