Answer the following with reference to the concepts of instantaneous speed and…
PHYSICS · Multi-part · CBSE · Physics · Motion in a Straight Line · Motion in a Straight Line
Problem
Answer the following with reference to the concepts of instantaneous speed and instantaneous velocity.
(a) Define instantaneous speed and instantaneous velocity. State the SI unit of each.
(b) Explain why instantaneous speed can never take negative values even though instantaneous velocity may be negative.
(c) A particle has an instantaneous velocity of −5ms−1 at t=6s. State its instantaneous speed at that instant and justify your answer conceptually.