During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 1.78 km/s at an initial inclination of 63.2◦ to the horizontal.
The acceleration of gravity is 9.8 m/s2 . How far away did the shell hit?
Answer in units of km.

part 2
How long was it in the air? Answer in units of s.

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