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Question
With all other relevant conditions remaining the same, the speed of a vehicle negotiating a curve is proportional to
A.
B.
Weight of the vehicle
C.
D.
Answer ( Option D)

Solution

When a vehicle transverse a horizontal curve centrifugal force acts horizontally outwards through centre of gravity of vehicles
This centrifugal force is counteracted by the transverse frictional resistance developed between tyres and pavement. Centrifugal force is given by
Where,
P = Centrifugal force
V = Speed of vehicle
W = Weight of vehicle
R = Radius of curve
As per given condition if R and P is remaining same
then

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