Cannon problem: There is a new cannon entering service. The artillery crews need some information about the cannon's behavior so they can make adjustments to the firing angle as needed. When the engineers tell the artillery crew the range to the target, the crew must be able to calculate and set the proper firing angle for the cannon quickly.
Cannon problem: There is a new cannon entering service. The artillery crews need some
information about the cannon's behavior so they can make adjustments to the firing angle as
needed. When the engineers tell the artillery crew the range to the target, the crew must be able
to calculate and set the proper firing angle for the cannon quickly.
a) In order to calculate the proper firing angle what do they need to know about the
cannonball leaving the cannon? (Ignore the height of the cannon above the ground. For now we
will assume it makes little difference)
b) Given your answer for part a, we need to identify the point in the cannonball's flight when
it has its "initial velocity". The cannonball is clearly moving inside the barrel of the cannon, but at
which point in the cannonball's path do we mark the initial velocity? The cannonball is packed
onto a mass of gunpowder in the base of the cannon. When the powder is ignited, the
reaction
Qualitatively, describe what is happening to the motion of the cannonball from the moment the
powder is ignited until the moment when we say it is traveling with its "initial velocity"? Where is
the cannonball when we say it has its initial velocity?
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