Question

A spaceship travels $3600km$ in one hour. Express its speed in $km/s$.

Answer 1

Conversion of units

Spaceship speed $=36000km/h$

In $1$hour spaceship travels $=36000km$

We can say that in $60\times 60$ second spaceship travel $=36000km$

∴ In $1$second space ship travel$=\frac{36000}{60\times 60}km$

$=10km$

Hence, the speed of the spaceship is $10km/s$