angular acceleration

American  

noun

Physics.

1. the time rate of change of angular velocity of a rotating body.

---

angular acceleration British  

noun

1. the rate of change of angular velocity

2. astronautics the acceleration of a space vehicle around an axis

---

angular acceleration Scientific  

/ ăng′gyə-lər /

1. The rate of change of angular velocity with respect to time. Angular acceleration is measured in revolutions per minute squared or in radians per second squared.

---

Etymology

Origin of angular acceleration

First recorded in 1880–85

Example Sentences

For example, it would be useful to know how linear and angular acceleration are related.

From Textbooks • Aug. 12, 2015

The kinematics of rotational motion describes the relationships among rotation angle, angular velocity, angular acceleration, and time.

From Textbooks • Aug. 12, 2015

Tangential acceleration at is directly related to the angular acceleration α and is linked to an increase or decrease in the velocity, but not its direction.

From Textbooks • Aug. 12, 2015

For example, the smaller a wheel, the smaller its linear acceleration for a given angular acceleration α .

From Textbooks • Aug. 12, 2015

The sensations produced by angular acceleration last longer than the acceleration itself, and the position of the head during the movements enables us to determine direction.”

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" by Various