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3 votes
In order to measure motion,one needs to observe?

A.an object’s position at different times.

B.an object’s position one time.

C.an object’s size and direction.

2 Answers

5 votes
I would say A, An object’s position at different times. :)
User Jonatan Goebel
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9.1k points
1 vote
The answer would be A
User Redberry
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8.5k points

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