Practice question
Question
A 1000kg car on a banked road (θ\=15∘, μs\=0.3) turns at radius 40m. What is the maximum speed without slipping? (Take g\=10m/s2, tan15∘≈0.268)
Explanation
Max speed vmax=rgμs+tanθ1−μstanθ. As per NCERT Chapter 3, equations v=u+at, s=ut+½at², v²=u²+2as describe uniformly accelerated motion. Applying correct signs and units gives 14 m/s as the result, so option A is correct.
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