Question

Convert a speed of a) 54kmph into m/s b) 20 m/s into km/h​

Answer 1

$\huge\underline{\underline{\sf \red{Remember}:}}$

To convert km/h into m/s always multiply the given number by $\bf{\dfrac{5}{18}}$.

And

To convert m/s into km/h always multiply the given number by $\bf{\dfrac{18}{5}}$ .

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Here ,

Convert 54km/h into m/s :

$\implies{\sf 54×\dfrac{5}{18}}$

$\implies{\sf 15\:m/s }$

Convert 20 km/h into m/s

$\implies{\sf 20×\dfrac{5}{18}}$

$\implies{\sf 5.55\:m/s }$

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⛬ 54km/h in m/s is 15m/s

And , 20km/h in m/s is 5.55m/s