Because the friction force due air acting on the upper part of of body the person who travelling on the roof of the running bus try to turn over which is dangerous for passenger while the lower portion remain at rest w.r.t the roof of the bus.
BY: SHOAIBBILAL@64YAHOO.COM
When brakes are applied by the driver of the bus the passenger sitting on the roof of the bus will fall outward due to the inertial property of body the upward part of the pasangwr will want to continue its motion while the lower part will stay intact.
When you are on a train, you are moving horizontally at the same speed as that train, relative to the ground. When you jump from the train, you will start decelerating horizontally, slowly, because of friction with the air. You will also start accelerating vertically toward the ground, because there is nothing between you and the ground, other than the air, to resist gravity.
When you hit the ground, you will decelerate rapidly both vertically and horizontally.
If you are high enough from the ground when you jumped, (say the train was over a bridge) the time it takes you to fall vertically the distance to the ground might be longer than the time it takes you to decelerate horizontally. The speed you are travelling at horizontally when you hit the ground is slow enough to not injure you, but you will have accelerated vertically to a speed fast enough to injure you when you hit the ground.
Even though we fix firmly our legs on the ground due to inertia of motion the head and body would be in continuous motion. So we get toppled forward in the direction of movement of the bus and definitely get injured severely.
because you'll probably hit the ground pretty hard and die
because it is moving
because as the driver apply brakes so the bus will stop but the inertia of body will continue the motion of upper part of person which can cause fall from the roof of bus
due to inerita
Relative to the bus, you are moving towards the back. If your walking speed is slower than the speed of the moving bus (which it usually will be) then your motion relative to a point on the ground will be moving in the direction of the moving bus, but slower by the speed at which you are walking.
The bus, as there is a much larger moving mass.
In the direction of
If a passenger on a bus moving east sees a man standing on a curb from the passenger's perspective, the man appears to be moving west at a speed equal to the bus' speed.
due to inerita
because in the bus we are in motion and as soon as we move out there is sudden jerk because of inertia of motion.
Relative to the bus, you are moving towards the back. If your walking speed is slower than the speed of the moving bus (which it usually will be) then your motion relative to a point on the ground will be moving in the direction of the moving bus, but slower by the speed at which you are walking.
why is it dangerous to travel on the roof of a bus
They would die, of course
If you pass a school bus that is stopped and get caught, which you more than likely will as the will write down you license plate number, you will get a ticket and pay a hefty fine. Passing a school bus it very dangerous and serious and it is not taken lightly in any state. If you are talking about passing a moving school bus then as long as you pass in a passing zone and are not speeding you are not breaking any law so nothing will happen.
Until the stop sign on the side of the bus is pressed to the bus and the red lights behind it are off and the bus is moving forward again.
The bus, as there is a much larger moving mass.
In the direction of
Relative to the person in the bus, the ball goes in a vertical line. To a person outside the moving bus it would go in a parabolic path.
Bus'srun in to car's
It isn't dangerous to travel in a double decker bus.