Thursday
July 24, 2014

Homework Help: physics

Posted by Noah on Sunday, September 2, 2012 at 2:08am.

A cannon fires a 0.639 kg shell with initial
velocity vi = 10 m/s in the direction θ = 55

above the horizontal.
The shell’s trajectory curves downward because of gravity, so at the time t = 0.217 s
the shell is below the straight line by some
vertical distance ∆h.
Find this distance ∆h in the absence of
air resistance. The acceleration of gravity is
9.8 m/s
2
.
Answer in units of m

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