Question

State an example in which relative velocity of a body with respect to another is zero​

Answer 1

An example in which the relative velocity of a body with respect to another is zero is when two objects are at rest or moving together with the same speed and in the same direction.

For instance, consider two cars parked side by side on a road. If both cars remain stationary, their relative velocity with respect to each other is zero. Another example is when two people are walking together at the same speed and in the same direction. In this case, their relative velocity with respect to each other is also zero.

Answer 2

When two bodies travel in the same direction at the same speed, their relative velocity equals zero. A person's relative velocity with regard to the chair is zero when he or she sits in it. The chair's relative velocity to the occupant is also zero.

Example- When a ball is thrown upwards on earth with a constant velocity, the gravitational force of the earth acts on it in the opposite direction. At the highest point, the velocity of the ball becomes zero, after which it starts to fall down.