Q. Select the incorrect statements from the following S1 : Average velocity is path length divided by time interval S2 : In general, speed is greater than the magnitude of the velocity S3 : A particle moving in a given direction with a non-zero velocity can have zero speed S4 : The magnitude of average velocity is the average speed
A) S2 and S3
B) S1 and S4
C) S1, S3 and S4
D) All four statements
Explanation
(c) Average velocity $= \frac{Displacement}{Time\ interval}$
A particle moving in a given direction with non-zero velocity cannot have zero speed.
In general, average speed is not equal to magnitude of average velocity. However, it can be so if the motion is along a straight line without change in direction
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.