Question

convert a speed of 54 km per hour into metre per second .

Answer 1

Meters in 1 km = 1000
M in 54 km = 54000

Second in one hour = 60* 60= 3600

54km in m/sec = 54000/ 3600
= 15 m/sec

Answer 2

Heya Frnd ,

For converting 54 km/hr into m/s,

We must multiply it by 5/18

So,

54 * 5/18

=> 15 m/s ............... ★ANS★

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FOR GETTING THE VALUE AS 5/18

WE MUST DIVIDE :-

$\frac{1000 \: metres}{3600 \: seconds}$
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HOPE IT WILL HELP U ☺☺☺