CHE 2A Lecture Notes - Angular Velocity, Angular Acceleration
Document Summary
Acceleration is the rate at which an object changes its velocity over time. Velocity is a vector quantity that includes both speed and direction, and acceleration is a vector quantity that includes both magnitude and direction. The unit of acceleration is meters per second squared (m/s ) in the si system. There are two types of acceleration: linear acceleration and angular acceleration. Linear acceleration is the change in an object"s linear velocity over time. It can be positive or negative, depending on whether the object is speeding up or slowing down. Angular acceleration, on the other hand, is the rate of change of an object"s angular velocity over time. It is also a vector quantity and is measured in radians per second squared (rad/s ) in the si system. Angular acceleration is calculated using the following formula:
