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A man runs at a speed of 4 ms to overtak...

A man runs at a speed of 4 ms to overtake a standing bus. When he is 6m behind the door (a ) the bus moves forward and continues moving with constant acceleration of 1.2 `m/s^2`. The time after which the man is able to catch the bus is :

A

4.4s

B

2.3 s

C

6.7 s

D

2.1 s

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The correct Answer is:
B
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