Question

Which physical quantity is used to describe the motion of a body ?

Answer 1

Answer:

The main quantity that measures the motion of a body is momentum. An object's momentum increases with the object's mass and with its velocity. The total momentum of all objects in an isolated system (one not affected by external forces) does not change with time, as described by the law of conservation of momentum.

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Answer 2

the main physical quantity of motion is momentum.

Explanation:

an object momentum increases with object mass and with it's velocity