A block of mass m is resting inside a smooth horizontal tube. If the tube accelerates vertically downward with acceleration a=kt where k is a positive constant, the correct plot showing the variation of normal reaction received by the block as a function of time (considering that upward direction of normal reaction is positive and taken towards positive direction y axis) will be

A block of mass m is resting inside a smooth horizontal tube. If the t

1.	A block of mass m is resting inside a smooth horizontal tube. If the tube accelerates vertically downward with acceleration a=kt where k is a positive constant, the correct plot showing the variation of normal reaction received by the block as a function of time (considering that upward direction of normal reaction is positive and taken towards positive direction y axis) will be
Answer» Solution :Upto time `t=g//k, N` will be ALONG upwards direction after that it will be along DOWNWARD direction.

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