Questions
A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless road. If the banking angle is 450, the speed of the car is [CBSE AIPMT 2012]
a
20 ms-1
b
30 ms-1
c
5 ms-1
d
10 ms-1
detailed solution
Correct option is B
The angle of banking tanθ=v2rgGiven, θ=45°,r=90 m and g=10 ms-2tan45°=v290×10⇒ v=90×10×tan45°Speed of car, v=30 ms-1Talk to our academic expert!
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For traffic moving at 60 km/ hour along a circular track of radius 0⋅1 km, the correct angle of banking is
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