Give one physical quantity in which we make the use of dot product of vectors. from Physics Motion in A Plane Class 11 Manipur Board
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Physics Part I

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Class 10 Class 12
Give one physical quantity in which we make the use of dot product of vectors.

Work is dot product of force and displacement. 

                              W = stack straight F space with rightwards harpoon with barb upwards on top. space d with rightwards harpoon with barb upwards on top 

Force and displacement both are vector quantities and work is a scalar quantity. 
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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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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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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 is a scalar quantity?

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