Q5 of 53 Page 205

Given figures represent the motion of two objects P and Q. Which of the objects has positive acceleration and which one has negative acceleration?

Graph P is having negative acceleration as the time is increasing, velocity is decreasing and finally comes to rest which shows retardation whereas Graph Q represents positive acceleration as the time is increasing velocity is also increasing.


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Give one similarity and one dissimilarity between the two graphs:

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What is the value of acceleration in the following graph:

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Velocity-time graphs of two objects P and Q are as given below:


(i) Which object starts from rest?


(ii)Which object has more velocity after 5 s?

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A body is moving with a velocity of 10 m/s. If it starts acceleration with the rate of 2.5 m/s2. Find out its velocity after 10s.