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AP EAMCET · PHYSICS · Laws of Motion

In a circus, a stuntman rides a motor bike in a vertical circular track of radius \(r\). Find the minimum speed, he must maintain at highest point of track.

  1. A \(\sqrt{2 g r}\)
  2. B \(2 \sqrt{g r}\)
  3. C \(\sqrt{g r}\)
  4. D \(\sqrt{5 g r}\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(\sqrt{g r}\)

Step-by-step Solution

Detailed explanation

For motion in vertical circle, to complete the revolution of moving body, the minimum speed of body at lowest point and highest point should be \(\sqrt{5 g r}\) and \(\sqrt{g r}\) respectively, where \(r\) is the radius of circular path. Hence, in circus, for completing vertical…