What law of motion is falling forward while getting down from a moving bus?

According to the law of inertia of motion, the body resists any kind of change in the state of its motion. When a man gets down from a moving bus his body has a speed equal to the speed of the bus and due to this speed, his body continues moving in the direction of the bus.



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A getting passenger getting down from a moving bus, falls in the direction of the motion of the bus. This is because his feet come to rest on touching the ground and the remaining body continues to move due to inertia of motion.

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The correct answer is Newton's first law. ?Newton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by force. This postulate is known as the law of inertia.

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The person is in a state of motion, but when they jump out and land on the ground, the lower half of their body comes to an abrupt stop. Due to the inertia of motion, the upper half of their body resists this sudden change in state and continues to move in the direction of the bus, causing the person to roll forward.

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The motion of a bus is resisted by mainly four forces which are: the inertial force, aerodynamic force, resistance due to the grade, and rolling resistance [6] .

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