Relative Velocity - Practice Questions & MCQ

• Rate of change in position of one object with respect to another object with time is defined as relative velocity of one object with another.

• Formula-

           Relative  velocity of object A with respect to object B .

•  Relative velocity of A with respect to B is velocity of A as observed by B.

• Case of Relative velocity

1. When A and B are moving along a straight line in the same direction.

             = Velocity of object A.

             = Velocity of object B.

         Then, relative velocity  of A w.r.t B is

                 all are in same direction. (If )

           And Relative velocity of B w.r.t A is

                        & 

2. When A & B are moving along with straight line in opposite direction.

          Relative velocity of A with respect to B is.

       3. Relative Velocity when bodies moving at an angle to each other

• Relative velocity of a body, A with respected body B 

Where, 

• If     makes an angle with the direction of , then

• If two bodies are moving at right angles to each other.

           Relative Velocity of A with respect to B is