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Why must forces be added as vectors?
A
Force has both magnitude and direction.
B
On a plane inclined at α\alphaα, the component of weight down the plane is mgsinα\boxed{mg\sin\alpha}mgsinα.
C
Along the taut string, away from the particle.
D
The force acts opposite to the assumed direction.
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4.9.2 Forces and Newton's laws (A-level only) Flashcards
20 flashcards on WJEC A Level Maths 4.9.2 Forces and Newton's laws (A-level only): the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.