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Man A is sitting in a car moving with a ...

Man A is sitting in a car moving with a speed of 54 `(km)/(hr)` observes a man B in front of the car crossing perpendicularly a road of width 15 m in three seconds. Then the velocity of man B (in `(m)/(s)`) will be:

A

`5sqrt()10` towards the car

B

`5sqrt()10` away from the car

C

5 m/s perpendicular to the road

D

None

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The correct Answer is:
B
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