Question

If the speed of a car is 20 m s^-1 then what is its speed in km h^-1 ?#no spam​

Answer 1

• Speed in m/s=20m/s

We have to convert it to km/h

$\\ \sf\longmapsto 20\times \dfrac{3600}{1000}$

$\\ \sf\longmapsto 20\times \dfrac{18}{5}$

$\\ \sf\longmapsto 4times 18$

$\\ \sf\longmapsto 72km/h$

Answer 2

Answer:

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