The vector quantities (or sometimes known as vectors) are those quantities which have both magnitude and direction such as force,displacement,velocity, acceleration,momentum etc.following are the important feature of vector quantities:
1. Representation of a vector. A vector is represented by a directed line.
2.Unit vector. A vector, whose magnitude is unity, is known as unit vector.
3.Equal vector. The vectors,which are parallel to each other and have same direction (i.e.,same sense) and equal magnitude are known as equal vectors.
4.Like vectors. The vectors,which are parallel to each other and have same sense but unequal magnitude,are known as like vectors.
5. Addition of vectors.
this method of adding the two vectors is called the triangle law of addition of vectors.similarly,if more than two vector are to be added,the same may be done first by adding the two vectors,and then by adding the third vector to the resultant of the first two and so on.This method of adding more than two vectors is called polygon Law of Addition of Vectors.
6.Subtraction of vectors. consider two vectors PQ and RS in which the vector RS is Required to be Subtracted .
1. Representation of a vector. A vector is represented by a directed line.
2.Unit vector. A vector, whose magnitude is unity, is known as unit vector.
3.Equal vector. The vectors,which are parallel to each other and have same direction (i.e.,same sense) and equal magnitude are known as equal vectors.
4.Like vectors. The vectors,which are parallel to each other and have same sense but unequal magnitude,are known as like vectors.
5. Addition of vectors.
this method of adding the two vectors is called the triangle law of addition of vectors.similarly,if more than two vector are to be added,the same may be done first by adding the two vectors,and then by adding the third vector to the resultant of the first two and so on.This method of adding more than two vectors is called polygon Law of Addition of Vectors.
6.Subtraction of vectors. consider two vectors PQ and RS in which the vector RS is Required to be Subtracted .
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