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Motion in A Plane

Physics Part I

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Class 10 Class 12
When the magnitude of the resultant of two vectors is equal to the sum of the magnitude of two vectors?

The resultant of two vectors is equal to the sum of the magnitude of two vectors, if two vectors are like parallel vectors. The nature of resultant vectors is same as that of the given vectors.
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What is a vector quantity?

A physical quantity that requires direction along with magnitude, for its complete specification is called a vector quantity.
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Give three examples of vector quantities.

Force, impulse and momentum.
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Give three examples of scalar quantities.

Mass, temperature and energy
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What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

A quantity must possess the direction and must follow the vector axioms. Any quantity that follows the vector axioms are classified as vectors.

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What is a scalar quantity?

A physical quantity that requires only magnitude for its complete specification is called a scalar quantity.
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