A) 10 m/s
B) 5 m/s
C) 20 m/s
D) 30 m/s
Correct Answer: D
Solution :
For safe banking, \[\tan \,\theta \,\,=\,\,\frac{{{v}^{2}}}{Rg}\] \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,v=\sqrt{Rg\,\,\tan \,\theta }\] \[=\,\,\,\sqrt{90\times 10\times tan45{}^\circ }\,\,=\,\,30\,m/s\]You need to login to perform this action.
You will be redirected in
3 sec