Question

Express 15 metre per second to 108 kilometre per hour in simplest form​

Answer 1

15m/1second

and108km/h=108×100/60×60

10800m/3600s=3m/s

15m/s to 3m/s

or 5:1

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Answer 2

Answer:

1 : 2

Step-by-step explanation:

We need to make sure that the units of the two terms are the same.

The two terms are 15m/s and 108 km/h.

We will first convert 108 km/h to m/s

To convert 108 km/h to m/s, we first convert the 108 km to m:

108 km/h = (108 x 1000)m/h

108 km/h = 108000m/h

Now we shall convert the hour to seconds:

108000m/h = 108000m/3600s

108000m/h = 30m/s

Now that we have both term in the same units, we can simplify the ratio:

15 m/s : 30 m/s

Take away the units

15 : 30

Simplify by dividing by 15

1 : 2

Answer: 1 : 2