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A bomb is dropped on an enemy post by an...

A bomb is dropped on an enemy post by an aeroplane flying. With a horizontal velocity of 60km/hr and at a height of 490 m. how far the aeroplane must be from the enemy post at the time of dropping the bomb, so that it may directly hit the target? `(g=9.8m//s^(2))`

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SL ARORA-Motion in a Plane-Excercise
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