Question

To convert a quantity from km/h to m/s, you must a. multiply by 3600 and divide by 1000 b. multiply by 1000 and divide by 60 c. multiply by 60 and divide by 1000 d. multiply by 1000 and divide by 3600e. none of these is correct

Answer 1

Answer:

The correct answer is D

Multiply by 1000 and divide by 3600

Step-by-step explanation:

We know that in 1 km we have 1000 m and in 1 h we have 60 minutes and each minute have 60 seconds, then we multiply 60*60 to know how many seconds are in an hour and we have that 1 h have 3600 s. Using a conversion factor we have:

$\frac{km}{h}(\frac{1000 m}{1km})(\frac{1h}{3600s})$

With this we can see that to convert a quantity from kn/h to m/s we must multiply by 1000 and divide by 36000