Homework Help: physics/ 2D motion

Posted by meagan on Sunday, September 25, 2011 at 5:21pm.

A projectile of mass 0.539 kg is shot from a
cannon. The end of the cannon’s barrel is
at height 6.4 m, as shown in the figure. The
initial velocity of the projectile is 9 m/s .
How long does it take the projectile to hit the
ground?
Answer in units of s

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