A motor-cyclist drives a motor cycle in a vertical circle. His minimum velocity

A motor-cyclist drives a motor cycle in a vertical circle. His minimum velocity at the highest point of the circle will be

Options

(a) √2Rg
(b) √3Rg
(c) √Rg
(d) 2Rg

Correct Answer:

√Rg

Explanation:

Frictional force = Centripetal force mg = mv² / R ⇒ v² = mgR / m ⇒ v² = Rg Therefore, minimum velocity v = √Rg

admin:

Related Questions

  1. Two bodies A(of mass 1kg) and B(of mass 3 kg) are dropped from heights of 16m and 25m
  2. For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
  3. The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
  4. A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
  5. A conducting sphere of radius R is given a charge Q. The electric potential