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26 August, 12:36

Which statement is true?

Speed is a scalar quantity and velocity is a vector quantity.

Speed and velocity are both scalar quantities.

Speed and velocity are both vector quantities.

Speed is a vector quantity and velocity is a scalar quantity.

Speed and velocity are neither a scalar quantity nor a vector quantity.

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  1. 26 August, 14:41
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    The first statement is true because s peed, being a scalar quantity, is the rate at which an object covers distance. The average speed is the distance (a scalar quantity) per time ratio. Speed has nothing to do with direction. On the other hand, velocity is a vector quantity because direction is needed for this.
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