1.

Give the magnitude and direction of the net force acting on a stone of mass 0.1 kg just after it is dropped from the window of a stationary train.

Answer»

Here, g = 9.8 ms-2. When stone of mass 0.1 kg is dropped from the window of a stationary train, the net force acting on it just after it is dropped, will be

F = weight of stone = Mg = 0.1 x 9.8 N

= 0.98 N (vertically downward)



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