Why a passenger in a speeding bus is thrown forward when the bus suddenly stops?
The lower part of the body of passengers (which is in contact with the bus) comes to rest, but because of inertia, the upper part of the body tends to keep on moving. As a result of it, the rider falls forward.
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When the running bus stops suddenly, the passengers are jerked forward because due to inertia of motion the passengers tend to remain in their state of motion even though the bus has come to rest.
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.
When bus starts moving forward, lower part of the person begin to move with the bus whereas the upper part of the body tends to remain in rest due to inertia. Q. Assertion :When a bus starts suddenly, a person standing in it falls backwards.
If I jump up in a moving bus will I land on the same spot where? If the bus is traveling at constant speed, yes. You're moving with the same speed as the bus, and you'll keep moving with this speed while you're jumping. If the bus is accelerating while you jump, you will land in a slightly different spot.