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WHAT IS THE DESCRIPTION OF THEIR MOTION ?

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IMAGINE THAT A PASSENGER IS WALKING TOWARDS THE BACK OF A TRAIN AS THE TRAIN IS LEAVING THE STATION. WHY WOULD THIS PERSON'S DESCRIPTION OF THEIR MOTION DIFFER FROM THAT OF AN OBSERVER STANDING ON THE PLATFORM ?

Oct 20th, 2017

Motion is a change in object‘s position relative to its reference point and time. Motion is usually determined in terms of time, acceleration, velocity, direction and displacement. Motion is monitored by connecting a frame of reference to an object and computing its change in position with respect to that frame.

  In above scenario, Person B stood at platform is monitoring train and person A walking behind it. For Person A the train is a frame of reference and person B is an object. Person A description of motion differ from that of an observer standing on the platform because he is changing his position with respect to time but person B hasn’t changed his position relative to time.


Sep 18th, 2014

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