What do you mean by Relative velocity ?

This topic will discuss about the velocity of an object with respect to another object. In this article you will learn Relative Velocity Analysis  in both forms text and video as well.

 Relative velocity of one object with respect to another is the velocity with which one object moves with respect to another object .When two objects A and B are moving with different velocities , then the velocity of one object A with respect to another object B is called relative velocity of object A with respect to object B , hence relative velocity is defined as the time rate of change of relative position of one object with respect to another.

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Expression for the relative velocities – Suppose two objects A and B moving with uniform velocities VA and VB respectively along parallel straight line path in the

(i) Same direction (I.e. angle between them is 00)  ;

Relative velocity of A with respect to B = VA -(VB ) = VA -VB

 

(ii) Opposite direction (I.e. angle between them is 1800)

Relative velocity of A with respect to B = VA – (-VB ) = VA + VB

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