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Question

A car is moving on a circular path and takes a turn. If R1 and R2 be the reactions on the inner and outer wheels respectively, then

A
R1=R2
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B
R1<R2
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C
R1>R2
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D
R1R2
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Solution

The correct option is B R1<R2
The weight Mg of the car acts vertically decreases through the center of gravity G of the car
R1+R2=Mg
and the horizontal force F provides the centripetal force for motion in a circle
F=mv2r
Taking moments about G, there should be no resultant turning effect about the center of gravity
Fh+R1a=R2aR2=Fh+R1aaor,R2=R1+(Fha)R2>R1




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