What is Angular Displacement?
Angular Displacement is the angle that an object moves around a point in Circular Motion. It can be measured in either Degrees or Radians, although Radians are more frequently used in the field of Physics. The Angular Displacement is used for objects following a Circular Path such as a car going along a roundabout.
How does one convert Angular Distance from Radians to Degrees and vice versa?
What is Angular Speed?
The Angular Speed refers to how fast an object's Angular Position changes, and how quickly a certain Displacement can be travelled. Hence, it is the amount of Angular Displacement per unit time. It is described as:
What would the units for the Angular Speed of an object be? If you can think of a few, could you convert one of the ones you thought of to the other?
Example:
Calculate the Angular Speed of an object that travelled 8 π radians in 2 minutes.
What are Periods?
The Period is defined as the time taken to complete one revolution around a circle. Represented by the symbol “T”, it can be used to determine the Angular Speed of an object that has made one or more complete revolutions. The formula is given as:
What is a Frequency?
The Frequency is the number of complete revolutions that an object travels in one second. It is the reciprocal of the period, i.e., it can be obtained by dividing the period by one.
Example:
How many laps per second does an athlete run if running at a speed of 12π rad/s?
