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  4. Acceleration versus time graph of a particle moving in a straight line is as shown in adjoining figure-3.72. If initially particle was at rest. Then corresponding kinetic energy versus time graph will be :

Q. Acceleration versus time graph of a particle moving in a straight line is as shown in adjoining figure-. If initially particle was at rest. Then corresponding kinetic energy versus time graph will be :

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Solution:

As throughout motion acceleration is positive, speed continuously increases so also increases continuously with positive slope. The slope of is hence only possible option is (A).

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