Forces Glossary | Young Education

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V

Vector

A quantity with both magnitude and direction.

Velocity

The rate of change of displacement with time.

Vertical component

The part of a force acting vertically.

viscosity

often denoted by the Greek letter "η" (eta). It is measured in units of pascal-seconds (Pa·s) or poise (P). The higher the value, the more resistant the fluid is to flow. It's like a cosmic measure of a fluid's stickiness or thickness.

viscous

The magnitude of this force is often described by the equation F = ηAv, where F represents the force, η is the dynamic constant of the fluid, A is the surface area of the object, and v is the relative velocity between the object and the fluid. This equation allows us to quantify the resistance experienced by the object.