Question

What does Angular do as part of a component's life cycle?

a) Angular updates the DOM
b) Angular initializes the component in the constructor
c) Angular unsubscribes observables
d) Angular checks when data-bound properties change

Answer 1

Angular acceleration is the rate at which the angular velocity of an object changes over time, such as a spinning figure skater accelerating by pulling their arms inward.

Step-by-step explanation:

The question refers to angular acceleration in the context of physics. Angular acceleration is defined as b) the rate of change of the angular velocity. This means that angular acceleration measures how quickly the rotational speed of an object changes over time. It is not concerned with angular displacement, nor with linear displacement or velocity. For example, when a figure skater pulls their arms in during a spin, their angular velocity increases, and hence they experience angular acceleration.