Motion in a Straight Line - Result Question 28

29. The displacement time graph of a moving particle is shown below

The instantaneous velocity of the particle is negative at the point

(a) $D$

(b) $F$

(c) $C$

(d) $E$

[1994]

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Answer:

Correct Answer: 29. (d)

Solution:

  1. (d) At $E$, the slope of the curve is negative.

The line bending towards time axis represents decreasing velocity or negative velocity of the particle. It means the particle possesses retardation.