what is relative velocity?
Answers
Answer:
The vector difference between the velocities of two bodies : the velocity of a body with respect to another regarded as being at rest — compare relative motion.
Relative Velocity
The relative velocity of one object w.r.t another object is defined as the velocity with which one object moves w.r.t another.
It is the time rate of change of relative position of one object w.r.t. another.
Further Relative velocity of an object is the velocity of the object with respect to any other frame of reference.
Example
Suppose a bicyclist move with 6 km/hr w.r.t. ground and a train moves 60 km per hour and a pedestrian moves 2 km/hr.
The velocity of the train as seen by the pedestrian will be 60-2 = 58 km/hr while the velocity of the train as seen by the cyclist will be = 60 - 6 = 54 km/hr.
The velocity of the train as seen by the pedestrian will be 60-2 = 58 km/hr while the velocity of the train as seen by the cyclist will be = 60 - 6 = 54 km/hr.That is relative velocity of the train w.r.t. the bicycle will be 54 km/hr while it is 58 w.r.t. the pedestrian.