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.

                                                                                    
NEXT