Look at the graphs (a) to (d) (Fig. 3.20) carefully and state, with reasons, which of these cannot possibly represent one-dimensional motion of a particle.

Question

Philoid · Accepted Answer

(a) A particle cannot have two positions at the same instant of time in on-dimensional motion. So, it is not one-dimensional motion.

(b) A particle in one dimensional motion never have two velocities at same instant of time. So, it is not one-dimensional motion.

(c) Speed is a scalar quantity so, it cannot be negative. It is not a one-dimensional motion.

(d) Total path length cannot be decrease. So, it is not representing any motion.