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20 May, 21:20

Which quantity is a vector?

(1) power

(2) kinetic energy

(3) speed

(4) weight

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Answers (1)
  1. 20 May, 21:43
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    The correct answer is (4), weight. Is is a vector since it's got a direction. In the surface of the earth that direction is perpendicular to the earth's surface.

    This can be a tricky question since you might think speed is a vector, but speed is actually the modulus (scalar) of the velocity (vector).
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