Assertion For looping a verticla loop of radius, r the minimum velocity at lowest point should be `sqrt(5gr).` Reason In this event the velocityh at the highest point will be zero.

Assertion For looping a vertical loop of radius, r the minimum velocity at lowest point should be sqrt(5gr). Reason In this event the velocity at the highest point will be zero.

Statement I: If a particle of mass m is connected to a light rod and whirled in a vertical circle of radius R, then to complete the circle, the minimum velocity of the particle at the lowest point is sqrt(5gR) . Statement II: Mechanical energy is conserved and for the minimum velocity at the lowest point, the velocity at the highest point will be zero.

The maximum velocity at the lowest point, so that the string just slack at the highest point in a vertical circle of radius l.

The maximum velocity at the lowest point, so that the string just slack at the highest point in a vertical circle of radius l.

A fighter plane is moving in a vertical circle of radius 'r'. Its minimum velocity at the highest point of the circle will be

A fighter plane is moving in a vertical circle of radius 'r'. Its minimum velocity at the highest point of the circle will be