Vector quantities are often used in physics to represent the direction and magnitude of a physical quantity. Examples include velocity, force, torque, and acceleration.
In physics, velocity is the rate at which an object moves. In other words, it is a vector quantity that has both magnitude and direction. Velocity can be thought of as speed in a specific direction. For example, if you were driving north at 60 mph on I-95, your velocity would be 60 mph north. If you were driving south at 30 mph on I-95, your velocity would be 30 mph south.
Force is another important vector quantity in physics because it describes how an object changes its motion when acted upon by a force. Force is equal to mass times acceleration (F=ma). So if you were driving down the highway and suddenly slammed on your brakes because a deer ran across the road in front of you, your car would experience an acceleration proportional to its mass (assuming you didn’t hit anyone else).
Last modified: September 21, 2022