When a train stops suddenly,passengers in the | vedclass

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(C) According to Newton's first law of motion,an object in motion continues to be in motion unless acted upon by an external force. When the train sto

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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

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(C) According to Newton's first law of motion,an object in motion continues to be in motion unless acted upon by an external force. When the train stops suddenly,the lower part of the passenger's body,which is in contact with the seat,comes to rest along with the train. However,the upper part of the body continues to be in the state of motion due to inertia of motion. Therefore,the passengers feel a jerk in the forward direction.

When a train stops suddenly,passengers in the running train feel an instant jerk in the forward direction because

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