Question

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

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Solution

Conversion of unitsSpaceship speed $=36000km/h$In $1$hour spaceship travels $=36000km$We can say that in $60×60$ second spaceship travel $=36000km$∴ In $1$second space ship travel$=\frac{36000}{60×60}km$ $=10km$Hence, the speed of the spaceship is $10km/s$

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