Relative velocity refers to the velocity of an object in relation to another object. It is a measure of how fast an object is moving with respect to another object.
Relative velocity is calculated by subtracting the velocity of one object from the velocity of another object. This can be done using vector addition or by using the formula Vrel = V1 - V2, where Vrel is the relative velocity, V1 is the velocity of the first object, and V2 is the velocity of the second object.
Relative velocity is important in physics because it helps us understand the motion and interactions of objects in relation to each other. It is especially useful in situations where the motion of one object affects the motion of another object, such as in collisions or when objects are moving in different directions.
Absolute velocity refers to the velocity of an object with respect to an external reference point, such as the ground. Relative velocity, on the other hand, is the velocity of an object with respect to another object. This means that relative velocity takes into account the motion of both objects, while absolute velocity only considers the motion of one object.
The relative velocity of two objects can be affected by their individual velocities, as well as the direction and angle of their motion. Other factors such as the presence of external forces, mass, and friction can also impact relative velocity.