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A man is at a distance of 6 m from a bus...

A man is at a distance of 6 m from a bus. The bus begins to move with a constant acceleration of `3 ms^(−2)`. In order to catch the bus, the minimum speed with which the man should run towards the bus is

A

`2ms^-1`.

B

`4ms^1`.

C

`6ms^-1`.

D

8ms^-1`.

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