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What is the effect of applying a constant frictional torque to a rotating disk?
The disk experiences angular deceleration and eventually comes to rest.
What is the effect of a constant angular acceleration on an object initially at rest?
The object's angular velocity increases linearly with time.
What is the effect of increasing the radius of a rotating object (while keeping mass and angular velocity constant) on its moment of inertia?
The moment of inertia increases.
What is the effect of increasing angular velocity on angular displacement?
For a given time interval, the angular displacement increases.
What happens if the angular acceleration is zero?
The angular velocity remains constant.
Compare angular displacement and linear displacement.
Angular displacement: angle through which an object rotates | Linear displacement: change in position of an object in a straight line.
Compare angular velocity and linear velocity.
Angular velocity: rate of change of angular displacement | Linear velocity: rate of change of linear displacement.
Compare angular acceleration and linear acceleration.
Angular acceleration: rate of change of angular velocity | Linear acceleration: rate of change of linear velocity.
What is the difference between clockwise and counterclockwise rotation?
Clockwise: Typically assigned a negative value. | Counterclockwise: Typically assigned a positive value.
In the context of angular displacement, what does the angle ฮธ represent?
ฮธ represents the angular displacement, the angle through which an object rotates.
In the context of angular displacement, what does the arc length 's' represent?
The arc length 's' represents the distance traveled along the circular path due to the rotation.
In the context of angular displacement, what does the radius 'r' represent?
The radius 'r' represents the distance from the axis of rotation to the point where the displacement is measured.