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Here is a project.
The movement of a projectile can be described saying that
1. a projectile moves horizontally with constant speed.
(ideally the air offers no resistance)
2. a projectile is affected by gravity vertically. Gravity
is constant and reduces the vertical speed of a projectile
by a constant ammount. At one point gravity turns the sign
of the velocity of the projectile making it go down instead
of up. At the highest point the vertical velocity of the
object is cero.
3. the movement of the object stops when it reaches ground
level.
Daniel
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OpenWorld Learning
http://www.openworldlearning.org
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Projectile.mw2
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