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AIIMS 201926 May
Exam
AIIMS
Year
2019
Date
26 May
Subject
Physics
Chapter
Laws of Motion

AIIMS 2019 · 26 May · Physics · Laws of Motion

Assertion : When a cyclist doubles his speed of turning, the chance...

Assertion : When a cyclist doubles his speed of turning, the chance of his skidding becomes nearly four times. Reason: When the speed of the vehicle increases, the angle of bending also increases.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

For the banking of curve, tan⁡θ=v2rg\tan \theta=\frac{v^2}{r g}. When velocity vv is doubled, tan⁡θ\tan \theta becomes four times. With increase in θ\theta, the chance of overturning also increases. When vv increases, θ\theta increases and consequently chance of skidding or overturning becomes greater.
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