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Block A is placed on block B, whose mass...

Block A is placed on block B, whose mass is greater than that of A. There is friction between the blocks, while the ground is smooth. A horizontal force P, increasing linearly with time, begins to act on A. The acceleration `a_(1)` and `a_(2)` of A and B respectively are plotted against time (t). Choose the correct graph :

A

B

C

D

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The correct Answer is:
C
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