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A shell is shot with an initial velocity of 21 m/s, at an angle of 62...

A shell is shot with an initial velocity of 21 m/s, at an angle of 62 degrees above the horizontal. How long does it take for the shell to get to the top of its trajectory? At the top of the trajectory, the shell explodes into two fragments of equal mass, as shown in the figure below. One fragment, whose speed immediately after the explosion is zero, falls vertically. How far from the gun does this fragment land, assuming that the terrain is level and that air drag is negligible?

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