| Projectile motion
is a classic
system for the study of Newtonian Physics. The system presumes constant
downward acceleration due to the force of gravity and in the simplest
case presumes negligible forces of any other form (i.e. no air
resistance). Three key parameters govern the path of the projectile
(the trajectory): the initial vertical position of the projectile, the
initial speed of the projectile (magnitude of the initial velocity) and
the initial angle at which the projectile is launched (direction of the
initial velocity, usually measured from the horizontal). These initial
conditions affect the maximum heigh that the projectile reaches, the
maximum distance it travels before reaching ground level, and the time
it remains aloft.
Excel is a simple yet versatile tool for exploring systems visually, using both 3-D graphing capabilities and interactive input.
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