explain the situations where there is change in velocity
Answers
When an object is traveling in a circle at a constant speed, there is a change in velocity because of the change in direction, a change in velocity equates to acceleration. Acceleration is the change in velocity over time. The analysis of the 2 chosen points along the circumference of the circle at which the velocity changes are done in vector calculations. It's visibly apparent when drawn out on paper, during which you use each chosen point on the circle by itself as the start point of the x and the y axis. Use 2 different points and solve them separately as separate vectors. Plug these into velocity equation. Similarly, if you use the same point for the start and finish, You will have traveled a distance, suggesting speed, but no displacement, giving you an answer of NO velocity, so chose 2 different points of you want a velocity.