Final answer:
Positive angular velocity is when an object is rotating counterclockwise, while negative angular acceleration is when the object's rotation slows down. In both cases, the relationships are analogous to what happens with linear motion.
Step-by-step explanation:
Positive angular velocity is when an object is rotating counterclockwise, while negative angular acceleration is when the object's rotation slows down. In both cases, the relationships are analogous to what happens with linear motion. For example, there is a large deceleration when you crash into a brick wall - the velocity change is large in a short time interval.
When the angular velocity is positive, it means that the object is rotating counterclockwise. An example of positive angular velocity is a figure skater spinning counterclockwise. Conversely, when the angular acceleration is negative, it means that the object's rotation is slowing down.
The relationship between angular velocity and angular acceleration is similar to the relationship between linear velocity and linear acceleration. Positive angular velocity represents a counterclockwise rotation, while negative angular acceleration indicates a decrease in rotation speed.