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April 18, 2014

Homework Help: physical scinsce

Posted by Christian on Thursday, September 27, 2012 at 1:22am.

A cannon that is 10m long is designed to launch a 10kg ball over a castle wall.
In order to do this the ball must have a speed of at least 50m/s as it exits the
cannon. For every 10kg of explosives used, the force on the ball in the cannon
increases by 1000N. How many kg of explosives should they use?

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