An aircraft is moving horizontally with a speed of 50 m/s. At the height of 1.5 km, an object is dropped from the aircraft. What is the time interval before the object hits the ground?
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The forward velocity can be ignored
Calculate time to fall 2000 m under acceleration due to gravity
s = ut + ½ at²
2000 m = 0 + ½ * 9.8 * t²
t² = 2000 / 9.8
t² = 204.08
t = 14.28 s
I would quote answer as 14 s
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