Question

13.
Convert 16 m/s into km/h​

Answer 1

Here,

16m = 16/1000 = 0.016km

1s = 1/3600 = 0.000278hr

= 0.016km/0.00027hr

= 59.2592592593km/hr

Answer 2

We have 16 m/sec.

This means that the body moves 16 metres in each second.

Now,

To convert it into kmph we need to convert the metre and seconds into kilometers and hours respectively.

We already know that :

1 km = 1000m

So,

1 metre = 1/1000 km

And,

16 m = 16/1000 km

Also,

1 hour = 3600 seconds

1 second = 1/3600 hours

Putting down the values in formula :-

Speed will be :-

$= \frac{ \frac{16}{1000} }{ \frac{1}{3600} } \\ \\ \\ = \frac{16 \times 3600}{1000} \\ \\ \\ \\ = 16 \times \frac{18}{5} \\ \\ \\ = 3.2 \times 18 \\ \\ \\ \\ = 57.6 \: kmph$

Answer!