Graphics Programs Reference
In-Depth Information
product of the velocity with itself and then taking the square root; then we
multiply by
−
c
in the Gain block in the middle bottom of the model. The
Scope block in the lower right plots the ball's speed as a function of time.
(a)
With
c
set to 0 (no air resistance) and the initial velocity set to [80, 80], the
ball follows a familiar parabolic trajectory, as seen in the following picture:
Note that the ball travels about 400 feet before hitting the ground, and so
the trajectory is just about what is required for a home run in most
ballparks. We can read off the flight time and final speed from the other
two scopes:
Search WWH ::
Custom Search