Given: A speed of 15 meters per seconds
To Determine: The equivalent expression for the speed in kilometers per hour
Solution
Please note that 1000 meters is equivalent to 1 kilometers
Also, 1 minutes is equivalent to 60 seconds, and 1 hour is equivalent to 60 minutes
Hence, the expression to express 15 meters per second in kilometers per hour is
[tex]\frac{15meters}{1second}=\frac{60seconds}{1minute}.\frac{60minutes}{1hour}.\frac{1kilometer}{1000meters}[/tex]
From the given options, the correct answer is circled and ticked as shown below
