A particle moves along x – axis. It is at rest, At t = 0, x… | CGP Edu

Physics Motion in a Straight Line Instaneous Velocity and Speed MCQ (Single Correct)

A particle moves along x – axis. It is at rest, At t = 0, x = 0 and comes to rest at t = 1 and x = 1. If α α denotes instantaneous acceleration, then

A

α α cannot remain positive in the interval

B

| α α | ≤ 2 at any point in the path

C

| α α | must be ≥ ≥ 4 at some point in the path

D

α α must change sign during motion but no other assertion can be made

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taking t ≤ ; d ≥ ≥ 4.

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