Critical Speed/Velocity

Definition

Critical speed or critical velocity is defined as the minimum speed required for an object to complete a vertical circle without falling off at its highest point. It occurs when centripetal force equals gravitational force.

Analogy

Think of swinging on a playground swing set. If you swing too slowly, you won't make it all around; if you swing too fast, you might flip over at the top. The critical speed/velocity is like finding that perfect balance where you can complete full swings without any mishaps.

Related terms

Circular Motion: Circular motion refers to any motion along a curved path with constant radius.

Gravitational Force: Gravitational force is an attractive force between two objects with mass and acts towards their centers.

Centrifugal Force: Although not actually considered as real forces, centrifugal forces appear to push objects away from the center of rotation due to inertia.