Posted by **Cole** on Monday, October 18, 2010 at 11:03pm.

A revolutionary war cannon, with a mass of

2170 kg, fires a 18.1 kg ball horizontally. The

cannonball has a speed of 146 m/s after it has

left the barrel. The cannon carriage is on a

flat platform and is free to roll horizontally.

What is the speed of the cannon immedi-

ately after it was fired?

Answer in units of m/s.

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