Question

a body in unit time is known as its
The speed of fast moving objects are expressed in _______​

Answer 1

Answer:

unit

hope it helps you

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Answer 2

Answer:

Kilometers per hour.

Explanation:

When the distance travelled is measured in kilometres and the time taken is measured in hours, then the speed will come in the unit of 'kilometres per hour. The speeds of fast moving objects like cars, trains and aeroplanes are usually expressed in the unit of kilometres per hour.