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17. πr
18. A quantity which does not depend on direction is called a scalar quantity. Vector quantities have two characteristics, a magnitude and a direction. Scalar quantities have only a magnitude. ... The resulting motion of the aircraft in terms of displacement, velocity, and acceleration are also vector quantities.
19. 13m
20. 100m +314m.=414m
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17)πr
18)The quantity which does not depend on the direction is called scalar quantity.
Vector are quantity that are fully described by both magnitude and direction.
The magnitude of vector is represented by the length of arrows
19) 13m
20) 157m
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