Question

1) A cannon fires a cannon ball at a fort. The cannon’s barrel makes an angle of 30º with respect to the horizontal. The ball leaves the end of the cannon’s barrel at a height of 1.5m above the ground with a speed of 100m/s (along the barrel). The cannon ball ends its flight by striking the wall of the fort 10m above the ground. (You can assume that the cannon ball has already passed its maximum height before hitting the wall.) a) How far is the wall from the cannon? b) Assuming the ground is flat, how long is the cannon ball in the air?

          1) A cannon fires a cannon ball at a fort. The cannon’s barrel
makes an angle of 30º with respect to the horizontal. The ball
leaves the end of the cannon’s barrel at a height of 1.5m above the
ground with a speed of 100m/s (along the barrel). The cannon ball
ends its flight by striking the wall of the fort 10m above the
ground. (You can assume that the cannon ball has already passed its
maximum height before hitting the wall.)
a) How far is the wall from the cannon?
b) Assuming the ground is flat, how long is the cannon ball in
the air?

Added by Donna V.

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