A man jumping out from a moving bus holds the inertia of motion. As the man lands on the ground, feet come to rest instantly while the upper part of the body continue to move due to inertia of motion. Therefore, the person may fall forward. So, it is very dangerous to jump out of a moving bus.
- The inertia of motion causes the passenger of a bus to fall down or temporarily lose his balance as he tries to jump out of the moving bus.
- It is because the inertia of motion of the body appears to resist the change in the state of the body when the passenger jumps, because it prefers to remain in the state of motion of the bus instead of coming to a resting state.
What is inertia of motion?
For a body that is already in a state of motion, the inertia of motion will appear to continue in exactly the same state of motion with the same speed and direction until an external, unbalanced force acts on it to modify the state of motion.