1A.3 Adding forces Flashcards

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1
Q

what is a resultant force

A

it is a force that was all the individual effects of all the forces combined

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2
Q

how can we find the magnitude of a resultant force that has two forces that are perpendicular to each other

A

by using Pythagoras theorem

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3
Q

how can we find the direction of a resultant force that has two forces that are perpendicular to each other

A

by fining the magnitude then using trigonometry

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4
Q

how can we find the resultant force to two forces that are not perpendicular

A
  1. by finding the angle outside the triangle then finding the angle inside the triangle then using trigonometry
  2. by using the parallelogram rule where we would draw two vectors parallel to each other coming from the same point then we would draw an arc using a Drawing Compass then draw a line starting from the point where the vectors came from to the ark
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