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JEE Main 2019 (8 Apr, Shift 2) · Graphs of Motion

Graphs of Motion question from JEE Main 2019 (8 Apr, Shift 2)

Q30JEE Main 2019 · 8 APR · SHIFT 2Medium

Graphs of Motion

A particle starts from origin O from rest and moves with a uniform acceleration along the positive x- axis. Identify all figures that correctly represent the motion qualitatively. (a = acceleration, v = velocity, x = displacement, t = time)

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Answer: (d)

  1. Uniform acceleration from rest at origin: aa = constant, v=atv = at, x=12at2x = \frac{1}{2}at^2.
  2. (A) constant aa: correct. (B) vv-tt straight line through origin: correct.
  3. (C) xx starts above zero and flattens out: wrong. (D) parabola from origin curving upward: correct.
  4. So (A), (B), (D). So the answer is (d).
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