Question

In which motion , speed and velocity have same magnitude?
(a) When object is moving in a straight line motion.
(b) When object is moving in a circular motion.
(c) When object is moving in one direction only.
(d) When object is moving in both directions.​

Answer 1

Since speed is based on distance and velocity is based on displacement, these two quantities are effectively the same (have the same magnitude) when the time interval is "small" or, in the language of calculus, the magnitude of an object's average velocity approaches its average speed as the time interval approaches

Answer 2

Answer:

When object is moving in a straight line motion.