The parabolic path of a football can be
described by these two
equations:
- y = Vyt
- 0.5gt2
- x =Vxt
- y
is the height at any time (t)
- Vy
is the vertical component of the football's initial velocity
- g
is acceleration due to Earth's gravity, 9.8 m/s2
- x
is the horizontal distance of the ball at any time (t)
- Vx
is the horizontal component of the football's initial velocity
To calculate the
hang-time (ttotal), peak height (ymax),
and
maximum range (xmax) of a punt, you must know the
initial
velocity (V) of the ball off the kicker's foot, and the
angle (theta)
of the kick.
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