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. A tangent galvanometer has a coil of 50 turns and a radius of 20 cm. The horizontal
  2. The horizontal and vertical components of earth’s magnetic field at a place
  3. A solid sphere of mass M, radius R and having moment of inertia about an axis passing
  4. A bar magnet of magnetic moment M is placed at right angles to a magnetic
  5. Which of the following atoms has the lowest ionisation potential?