Noun
(physics) the rate of change of the angular velocity of a rotating body
Source: WordNetLikewise, Newton's Second Law of Motion can be used to derive an analogous equation for the instantaneous angular acceleration of the rigid body: : where : is the moment of inertia of the body : is the angular acceleration of the body. Source: Internet
Similarly, angular acceleration is often measured in radians per second per second (rad/s 2 ). Source: Internet
That is, : The transverse (or tangential) acceleration is directed at right angles to the radius vector and takes the sign of the angular acceleration ( ). Source: Internet
The angular acceleration corresponds to the quotient of the torque acting on the body and the moment of inertia of the body with respect to the momentary axis of rotation. Source: Internet
The moment of inertia plays much the same role in rotational dynamics as mass does in linear dynamics, describing the relationship between angular momentum and angular velocity, torque and angular acceleration, and several other quantities. Source: Internet
This decreases the rotation linearly to zero with constant angular acceleration, but when the rotation reaches exactly zero, this hitherto constant frictional force suddenly drops to zero, as well as the torque, and the associated acceleration of the car. Source: Internet