Posted by **ally** on Friday, February 25, 2011 at 8:03pm.

Part 2

You are a pirate working for Dread Pirate

Roberts. You are in charge of a cannon that

exerts a force 20000 N on a cannon ball while

the ball is in the barrel of the cannon. The

length of the cannon barrel is 2.19 m and

the cannon is aimed at a 32◦

angle from the

ground.

The acceleration of gravity is 9.8 m/s2.

If Dread Pirate Roberts tells you he wants

the ball to leave the cannon with speed v0 =86 m/s, what mass cannon ball must you use?

Answer in units of kg.

Part 2

Assuming the Dread Pirate Roberts never

misses, how far from the end of the cannon is

the ship that you are trying to hit (Neglect

dimensions of cannon)?

Answer in units of m.

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