velocity

vitesse, vitesse vectorielle

Grandeur qui indique à la fois la rapidité d’un déplacement et sa direction.

En anglais simple : How fast something moves and the direction in which it moves.

• The car has a velocity of ten metres per second northwards.
• Changing direction changes velocity even if speed stays constant.
• We calculated the velocities of both objects.

Expressions courantes : constant velocity, velocity vector, initial velocity, average velocity

vitesse

Mesure de la rapidité avec laquelle une chose se déplace.

En anglais simple : How fast something moves.

• The train gained velocity.
• The ball struck the wall at high velocity.
• We measured the velocity of the flowing water.

Synonymes : speed

Expressions courantes : high velocity, velocity of something, low velocity