Motion in a Straight Line

Question : 17

Total: 27

Figure shows the (x-t) plot of one- dimensional motion of a particle. Is it correct to say from the graph that the particle moves in a straight line for t < 0 and on a parabolic path for t > 0? If not, suggest a suitable physical context for this graph.

Solution:

No, it is not correct to say that the particle moves in a straight linefor t<0 and on a parabolic path for t > 0 as the x-t graph does not show thetrajectory of the path of a particle. The graph shows that at time
t=0,x=0
Context : The suitable context is a body dropped from a tower i.e. free fallof a body i.e.x=0 ‌at‌ ‌t=0

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