Question

the speed of a train is 20 m/s . what is the speed in km/h

Answer 1

Answer:

72 km/hr

Explanation:

if we want to change m/s into km/hr

we multiply the digit by 18/5

so 20 m/s = 20X18/5

= 72km/hr

hopefully my answer helped u

Answer 2

The answer is 72 Km/Hr.

• 1 meter = 1000 Kilometer
• 1 hour = 3600 seconds
• 1 m/s = 3600 seconds divided by 1000 kilometer

Given - speed of train in m/s = 20

To find - speed of train in km/hr

solution - we will use the above conversion factor,

            speed of train in km/hr = $\frac{20 * 3600}{1000}$

                                                    = 72 km/hr

Hence,the speed of train in km/hr is 72.