Under what condition is the magnitude of average velocity of an object equal to its average speed?
(A) object travel in Straight line
(b) object travel in curved path
(c) object remain at rest
(d) object moves undergoes uniform motion
Correct answer: (A) object travel in Straight line
Explanation:
The magnitude of the average velocity of an object is equal to its average speed, only in one condition when an object is moving in a straight line. The average speed is the total distance travelled in a given time frame and velocity is the total displacement in the time frame. The magnitude of average velocity and average speed will be the same when the total distance travelled is equal to the displacement.
The average velocity of a body in a certain time interval is given as the displacement of the body in that time interval divided by time.