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17-01-2018
Mathematics

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A projectile is fired at a speed of 800800 m/sec at an angle of 6060degrees°. how long will it take to get 2121 km downrange?

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Аноним Аноним

17-01-2018

The horizontal component of the velocity = 800 cos 60 = 400 m/sec

400 = distance / time = 21000 / t
t = 21,000 / 400 = 52.5 seconds Answer

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