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Q5.3  Give the magnitude and direction of the net force acting on a stone of mass 0.1 kg,

 (d) lying on the floor of a train which is accelerating with 1 m s -2 , the stone being at rest relative to the train. Neglect air resistance throughout.

Answers (1)


As the stone is in contact with the train thus the acceleration of stone is the same as that of train i.e.  1 m/s2.

Thus force acting on the stone is given by :   

                                                              F\ =\ ma

or                                                                 =\ 0.1\times 1\ =\ 0.1\ N

This force is acting in the horizontal direction. 

Posted by

Devendra Khairwa

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