NEET-XII-Physics
exam-1 year:2016
Qstn# 45 Prvs-Qstn
- #45A car is negotiating a curved road of radius R. The
road is banked at an angle ``\theta``. the coefficient of
friction between the tyres of the car and the road
is µs. The maximum safe velocity on this road is :-
(1)``\sqrt {gR^2 \frac{µs + tan\theta}{1- µs tan \theta}}``
(2)``\sqrt {gR \frac{µs + tan\theta}{1- µs tan \theta}}``
(3)
(4)
digAnsr: 2Ans : 2
Sol.
+
=
2
s
s
tanv
Rg 1- tan
&implies;
+
=
s
s
tan
v Rg
1- tan