Posted by **Susan** on Monday, February 25, 2013 at 11:40pm.

The infamous German "Paris gun" was used to launch a projectile with a flight time of 170 s for a horizontal distance of 122 km. Based on this information, and ignoring air resistance , calculate (a) the gun's muzzle speed and (b) the angle, measured above the horizontal, at which it was fired.

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