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NEET2012PhysicsRotational MotionActual

When a mass is rotating in a plane about a fixed point, its angular momentum is directed along

Options

  1. Aa line perpendicular to the plane of rotation
  2. Bthe line making an angle of 45^ to the plane of rotation
  3. Cthe radius
  4. Dthe tangent to the orbit

Correct answer

A. a line perpendicular to the plane of rotation

Step-by-step solution

We knows L =m( r v ) So here, angular momentum is directed along a line perpendicular to the plane of rotation.

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