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A stone is just dropped from the window ...

A stone is just dropped from the window of a train moving along a horizontal straight track with uniform speed. The path of the stone is

A

a parabola for an observer standing by the sie of the track

B

a horizontal straight line for an observer inside the train

C

both of the above are true

D

none of the above is true

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The correct Answer is:
A
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Give the magnitude and direction of the net force acting on a stone of mass 0.1 kg, (a) just after it is dropped from the window of a stationary train, (b) just after it is dropped from the window of a train running at a constant velocity of 36 km/h, (c ) just after it is dropped from the window of a train accelerating with 1 m s^(-2) , (d) lying on the floor of a train which is accelerating with 1 m s^(-2) , the stone being at rest relative to the train. Neglect air resistance throughout.

AAKASH SERIES-MOTION IN A PLANE -Exercise -I
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  6. A boy is projected from a point with different angles of projection 20...

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  9. Two bodies are projected at angles 30^(@) and 60^(@) to the horizontal...

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  11. A bomber flying horizontally with constant speed releases a bomb from ...

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  12. For a projectile .R. is range and .H. is maximum height

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