A curve has a radius of 50m and a banking angle (θ) of 15∘. What is the maximum safe speed for a car on this curve if the road does not offer any friction? Take g=10m/s2.
A
10√5(4−√3)m/s
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B
10√5(2−√3)m/s
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C
10√10(2−√5)m/s
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D
10√5(3−√3)m/s
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Solution
The correct option is B10√5(2−√3)m/s Applying the condition of banking for a frictionless road: tanθ=v2rg