﻿ Two vectors of magnitude A and B are acting at angle . Find the manitude of the difference of two vectors. from Physics Motion in A Plane Class 11 Manipur Board

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Two vectors of magnitude A and B are acting at angle . Find the manitude of the difference of two vectors.

Let two vectors  of magnitude A and B be acting at angle

We will find the magnitude of

The vector  can be written as .
Thus,  is equal to resultant of

As the angle between  is , therefore angle between  is

Thus,

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Give three examples of vector quantities.

Force, impulse and momentum.
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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.
1212 Views

Give three examples of scalar quantities.

Mass, temperature and energy
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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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