Question

12.5 m/s can be expressed into km/h​

Answer 1

`45\,\,km/h`

Step-by-step explanation:

Given:
`12.5\,\,m/s`

To express:
`12.5\,\,m/s` into
`km/h`

Solution:

Use the following relations between
`m` and
`km`,
`s` and
`h`

Here,
`m` denotes meter,
`km` denotes kilometer,
`s` denotes seconds and
`h` denotes hour.

`1\,\,m=(1)/(1000)\,\,km`

`1\,\,s=(1)/(3600)\,\,h`

Therefore,

`12.5\,\,m/s=(12.5(3600))/(1000)=45\,\,km/h`