1. What does relative motion mean? 2. Give some examples of relative motion from daily life. 3. A child drops a stone from a window of a fast-moving train. What kind of motion does the stone have relative to the child? What kind of motion does the stone have relative to an observer on the ground? 4. The velocity vectors of a car and a motorcycle relative to the Earth are shown in the figure. Find the velocities of the car and the motorcycle a) A policeman, who is at rest next the street b) An observer in the car c) Amotorcyclist Решите .
