A circular racetrack of radius 300 m is banked at an angle of 
. The coefficient of friction between the wheels of a race car and the road is 0.2. The optimum speed of the race car to avoid wear and tear on its tyres is (Take 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
: Here 
The optimum speed of the car to avoid wear and tear is given by
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