Question

If a bus travels 20 km east in 30 minutes. What is the average velocity & displacement of the bus?

Answer 1

i. Average velocity = 11.11 m/s

ii. Displacement of the bus is 20000 m due east.

Explanation:

The displacement of an object is the distance covered towards a definite direction, while the velocity of an object is the rate of its displacement in a given time.

average velocity =
`(displacement)/(time taken)`

But,

20 km = 20 000 m

30 minutes = 30 x 60

= 1800 s

So that,

average velocity =
`(20000)/(1800)`

= 11.1111

average velocity = 11.1 m/s

The displacement of the bus is 20 km due east.