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Annabel Flowers
7 June, 16:14
Why is force a vector quantity?
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Sara Roach
7 June, 20:03
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Because if I pull my end of the rope this way and you pull your end of it
that way, the rope doesn't move ... just as if nobody was pulling on it at all.
So the direction of the force must have something to do with the effect it has.
Similarly, when several people are pushing a car to make it move, everybody
knows that they should all push in the same direction. If half of them push on
the back of the car and the other half push on the front, then the people who
understand vectors get very angry.
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