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2-4. Using other driving systems
262
When the grade behind the vehicle slopes
down sharply, objects appear to be closer
than they actually are.
The distance that appears on the screen
between three-dimensional objects (such
as vehicles) and flat surfaces (such as the
road) and the actual distance differ as fol-
lows.
In reality, C = A < B (C and A are equally far
away; B is farther than C and A). However,
on the screen, the situation appears to be A
< B < C.
On the screen, it appears that a truck is
parking about 1.5 ft (0.5 m) away. How-
ever, in reality if you back up to point A, you
will hit the track.
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