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Q. |
A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be - |
A. | a parabola |
B. | a horizontal straight line |
C. | a vertical straight line |
D. | a circle |
Answer» A. a parabola | |
Explanation: Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train. So, by Newton's first law, it continues its motion horizontally with that velocity. |
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