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As per your syllabus, a R=300 m banked-at-15° racetrack with μ = 0.2 has optimum speed approximately which value?
A28.1 m/s
B18.0 m/s
C38.1 m/s
D5.0 m/s
Answer & Solution
Correct answer: A. 28.1 m/s
syllabus Ex 4.11(a): v₀ = √(300 × 9.8 × tan 15°) = √(300 × 9.8 × 0.268) ≈ 28.1 m/s. v_max ≈ 38.1 m/s.
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