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A passenger in a train drops a ball from...

A passenger in a train drops a ball from the window of a train running at an acceleration 'a'. A pedestrain, on the ground, by the side of the rails, observers the ball falling along

A

a vertical with an acceleration `sqrt(g^(2)+a^(2))`

B

a vertical acceleration `sqrt(g^(2)+a^(2))`

C

a parabola with an acceleration `sqrt(g^(2)+a^(1))`

D

a parabola with an acceleration g

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The correct Answer is:
D
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