Question

A car travels 100 meters in 5 seconds. Its average speed in m/s is *
3
30
20
200
?????

Answer 1

Answer:

let be the distance s travelled in time t.

so,. s=100m

t=5sec

now formula for the average speed v,

v=s/t

putting values

v=100/5

v=20m/s

so the average speed of the body will be 20m/s.

option(C)

Answer 2

Car travels in 5 secs = 100 meters
It can travel in 1 sec = 100/5 meters
It can travel in 1 sec = 20 meters

So average speed is 20 m/s