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BITSAT 2013
Exam
BITSAT
Year
2013
Subject
Physics
Chapter
Laws of Motion

BITSAT 2013 · Physics · Laws of Motion

The minimum velocity (in ^ -1 ) with which a car driver must...

The minimum velocity (in \mathrm\mathrm\mathrm\mathrm\mathrm\mathrm\mathrm\mathrm\mathrm\mathrm\mathrm\mathrm{ms}^{-1} ) with which a car driver must traverse a flat curve of radius 150m150 \mathrm{ m} and coefficient of friction 0.6 to avoid skidding is

Options

  1. A60
  2. B30
  3. C15
  4. D25

Correct answer

B. 30

Step-by-step solution

The condition to avoid skidding, v=μrg=0.6×150×10=30m\mathrm{v}=\sqrt{\mu \mathrm{rg}}=\sqrt{0.6 \times 150 \times 10}=30 \mathrm{ m}/ s\mathrm{s}
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