An aeroplane flying horizontally at an altitude of 490m with a speed of 180kmph drops a bomb.the horizontal distance at which it hits the ground is
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Speed = 18km/hr = 50m/sec
Altitude = 490m
S = Ut + 1/2at²
490 = 0×t + 1/2×9.8×t²
t² = 100
t = 10sec
Time taken to travel 490m = 10sec
Distance = speed×Time
d = 10×50
d = 500m
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