Sarthaks Test
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A ball is dropped and its displacement vs time graph is as shown Fig. 3.4 (displacement x is from ground and all quantities are +ve upwards).

(a) Plot qualitatively velocity vs time graph.

(b) Plot qualitatively acceleration vs time graph.

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The ball is released and is falling under gravity. Acceleration is –g , except for the short time intervals in which the ball collides with

ground, and when the impulsive force acts and produces a large acceleration.

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