Question

The minimum velocity (in $ms^{-1}$) with which a car driver must traverse a flat curve of radius $150\, m$ and coefficient of friction $0.6$ to avoid skidding is

• A. 60
• B. 30
• C. 15
• D. 25

Answer 1

Answer: (B)

30

Answer 2

The condition to avoid skidding,
$v=\sqrt{\mu r g}$
$v=\sqrt{0.6 \times 150m \times 10}$
$v=30$