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Class 11 NEET Physics Laws of Motion Questions
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© examsnet.com
Question : 18
Total: 75
A car is negotiating a curved road of radius R. The road is banked at an angle θ The coefficient of friction between the tyres of the car and the road is
μ
s
. The maximum safe velocity on this road is:
[NEET 2016 P1]
√
g
R
2
μ
s
+
tan
θ
1
−
μ
s
+
tan
θ
√
g
R
2
μ
s
+
tan
θ
1
−
μ
s
+
tan
θ
√
g
R
μ
s
+
tan
θ
1
−
μ
s
+
tan
θ
√
g
R
μ
s
+
tan
θ
1
−
μ
s
+
tan
θ
Validate
Solution:
👈: Video Solution
For maximum speed the tendency of body is to slip up the incline
hence
V
m
a
x
2
R
g
=
tan
θ
+
μ
1
−
μ
tan
θ
or
V
m
a
x
=
√
R
g
(
t
a
n
θ
+
μ
1
−
μ
t
a
n
θ
)
© examsnet.com
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