Posted by **Anonymous** on Thursday, November 19, 2009 at 7:44pm.

An artillery shell is fired at an angle of 45.3◦ above the horizontal ground with an initial speed of 1710 m/s.

The acceleration of gravity is 9.8 m/s2 .

Find the total time of flight of the shell,

neglecting air resistance.

Answer in units of min.

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