Question

Following table gives the displacement of a car at different instants of time.

Times (s)	0	1	2	3	4
Displacement (m)	0	5	10	15	20

Find the average velocity of the car.

• A. $20m{s}^{-1}$
• B. $25m{s}^{-1}$
• C. $5m{s}^{-1}$
• D. $10m{s}^{-1}$

Answer 1

The correct option is C $5m{s}^{-1}$

Since displacement-time graph is a straight line, velocity is uniform. Therefore, average velocity will be equal to instantaneous velocity which can be found out by finding the slope of the graph.
Therefore, average velocity = 5 m/s.