SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Speed is a ____ quantity
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scalar
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vector
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Speed is a scalar quantity because it has no defined direction and only magnitude. Velocity is a vector quantity having both magnitude and a direction.
Detailed explanation-2: -Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, being a coherent derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s or m⋅s−1).
Detailed explanation-3: -Speed is a scalar quantity as it has magnitude only, it has no specified direction.
There is 1 question to complete.