Define ratio to show its scientific meaning. Then use it in a

sentence as a noun.

Ratio is used as a means of comparison of two or more subjects. It contain two or more digits which gives more information on the number of times an amount of number or times can be derived from the other/others.

An example of a ratio is 5:4 , 2:3 etc.

A ratio is also known as a noun and it can be used in sentences as follows:

The ratio of males to females in the school is five to eight. This can be translated as 5:8 in terms of mathematical expression.

prolly a beacuse the momentuem the car has increases while going down hill

0.11 m/s and 0.28 m/s should be correct