Look at the graphs, given below carefully, which of these graphs cannot possibly represent one-dimensional motion of a particle.

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All

(a), (b) only

(a), (b),(c) only

(a), (c) only

answer is D.

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Detailed Solution

(a)This graph does not represent one dimensional motion because at the given instant of time, the particle will have two positions, which is not possible in one dimensional motion.

(b)This graph does not represent one dimensional motion because at the given instant of time, the particle will have velocity in positive as well as in negative direction, which is not possible in one dimensional motion.

(c)It also does not represent one-dimensional motion because this graph tells that the particle will have the negative speed. Never happens.

(d)This graph does not represent one dimensional motion because here the total path length decreases after certain time but total path length of a moving particle can never decrease with time.

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