Question:

When a speeding bus stops suddenly, passengers are thrown forward from their seats because

Updated On: Jul 7, 2022
  • the back of seat suddenly pushes the passengers forward
  • inertia of rest stops the bus and takes the body forward
  • upper part of the body continues to be in the state of motion whereas the lower part of the body in contact with seat remains at rest
  • upper part of the body come to rest whereas the lower part of the body in contact with seat begins to move
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The Correct Option is C

Solution and Explanation

When the speeding bus stops suddenly, the lower part of the passengers?? body in contact with the seat remains at rest whereas the upper part of the body of the passengers continues to be in state of motion due to inertia. Hence, the passengers are thrown forward.
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Notes on laws of motion

Concepts Used:

Laws of Motion

The laws of motion, which are the keystone of classical mechanics, are three statements that defined the relationships between the forces acting on a body and its motion. They were first disclosed by English physicist and mathematician Isaac Newton.

Newton’s First Law of Motion

Newton’s 1st law states that a body at rest or uniform motion will continue to be at rest or uniform motion until and unless a net external force acts on it.

Newton’s Second Law of Motion

Newton's 2nd law of motion deals with the relation between force and acceleration. According to the second law of motion, the acceleration of an object as built by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

Newton’s Third Law of Motion

Newton's 3rd law of motion states when a body applies a force on another body that there is an equal and opposite reaction for every action.