Posted by Karen on Monday, November 26, 2012 at 5:37pm.
An artillery shell is ﬁred at an angle of 75.7 above the horizontal ground with an initial speed of 1720 m/s.
The acceleration of gravity is 9.8 m/s^2.
Find the total time of ﬂight of the shell,neglecting air resistance. Answer in units of min.

Physics  Elena, Monday, November 26, 2012 at 6:02pm
t= 2vₒâ€¢sinα/g
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