The initial speed of a cannonball is 520 m/s.
The acceleration of gravity is 9.8 m/s
2
. The
cannon and target are at the same elevation.
If the ball is to strike a target that is at a
horizontal distance of 2.7 km from the cannon,
what is the minimum time of flight for the
ball?
d = Xo * T = 2700 m.
520T = 2700
T = 5.19 s.