Question

formula of m pr sec into km ph​

Answer 1

Answer:

to convert metre per second to kilometre per hour multiply by 18 ÷ 5

Answer 2

Answer:

Multiply the speed in m/s by 3.6 to get the equivalent speed in km/hr

Step-by-step explanation:

Let's derive it.

Let the speed in m/s be 1.

Hence,

Speed is as follows,

$= 1ms {}^{ - 1} \\ = \frac{1m}{1s} \\ \\ = \frac{ \frac{1}{1000} km}{ \frac{1}{60 \times 60} hr} \\ \\ = \frac{60 \times 60}{1000} km \: hr {}^{ - 1} \\ = 3.6km \: hr {}^{ - 1}$

Since, 1 m/s = 3.6 km/hr

=> x m/s = 3.6x km/hr

Hence, formula is as follows,

Speed in km/hr = 3.6 * Speed in m/s