22. State whether speed is a scalar or a vector quantity. Give reason for your choice.
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Answer:
Explanation:
speed is a scalar quantity.. because it can be described completely by its magnitude, direction is not needed... whereas in vector quantities, magnitude as well as direction is required.
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QUESTION
State whether speed is a scalar or a vector quantity. Give reason for your choice.
ANSWER
Speed is a scalar quantity.
REASON
Speed is a scalar quantity. It is a distance travelled by a body per unit time. The speed is dependent only on the magnitude not on the direction. In the case of vector quantities both magnitude and direction are required. For speed only magnitude is considered. Hence speed is a scalar quantity.
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