ordinary law of algebra is applicable for a:vector b:scalar c:both d:not this el
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Answer:
b:scalar
Explanation:
scalar can be only added by ordinary algebra
vector quantities should and must be added by vector laws of addition
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Ordinary law of algebra is applicable for scalar quantities. (Option B)
- A scalar quantity is defined as the physical quantity with only magnitude and no direction.
- Such physical quantities can be described just by their numerical value without directions.
- Scalar quantities are the measurements that strictly refer to the magnitude of the medium. There are absolutely no directional components in a scalar quantity — only the magnitude of the medium.
- Example: Mass is a scalar quantity. It is a measure of the inertia of an object. Mass can be represented by a number only. The SI unit of mass is kg. Speed of an object is a scalar but velocity is a vector. Velocity has a direction as that of displacement.
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