Look at the graphs Fig. 2 (NCT) .5.(a) to (d) carefully and state, with reasons, with of these connot possinly represent on edimensional motion of a particle.

Explanation

(a) This graph does represent one dimensional motion because, at the giveninstant of time particle will have two position, which is not possible in one dimensioanal motion. ltbRgt (b) This graph does not represent one dimenstional motion because, at the given instant of time, particle will have velocity in psitive as well as in negative direction, which is not possinle in one dimensional motion.
(c ) It also does not represent one dimensional motion, becuse this graph tells that the particle can have the negative speed but speed of the particle can mever be begative.
(d) It also does not represent one dimensional motion, because this graph tells the total path length decreases after cectain time but path of a moving particle can never decrease with time.