ï»¿ Define zero vector. What is its direction? Give two examples of zero vector. from Physics Motion in A Plane Class 11 Manipur Board

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Class 10 Class 12
Define zero vector. What is its direction? Give two examples of zero vector.

When the magnitude of a vector is zero, it is known as a zero vector. Zero vectorÂ has an arbitrary direction.Â

Examples: (i) Position vector of origin is zero vector.

(ii) If a particle is at rest then displacement of the particle is zero vector.Â

(iii) Acceleration of uniform motion is zero vector.

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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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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.Â

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Give three examples of scalar quantities.

Mass, temperature and energy
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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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