Question

An eagle travelled 7 km in 500 seconds.

Calculate the average speed of the eagle
in metres per second (m/s).
If your answer is a decimal, give it to
2 d.p.

Answer 1

Explanation:

so, it traveled

7 km / 500 seconds

to get meters by 1 second, we need to divide everything by 500 (so we get the km by 1 second). and then we convert the km to m (1 km = 1000 m).

7/500 = 0.014 km

500/500 = 1 second

0.014 km × 1000 = 14 meters

so, it traveled 14 meters per second (14 m/s).

Answer 2

average speed = 14 m/ s

Explanation:

average speed (S) is calculated as

S =
`(D)/(T)` ( D is distance , T is time )

the average speed is required in m /s , thus convert 7 Km to m

using the conversion

1 Km = 1000 m , then

7 Km = 7 × 1000 m = 7000 m

average speed =
`(7000)/(500)` = 14 m/s