Explain the value or importance of using the International System of Units when describing motion. Provide an example the supports your reasoning.

(I need a simple answer)

Motion utilizes unit meters and seconds in an international system.

The units used make it easy for someone else who speaks another language in a different country to know the details said by someone in another country.

For example, anybody with the same units can see if anyone mentions an object's speed to be 50 meters per second. In the meantime, measurements like foot per second are confined to a limited number of countries.