Projectile Motion: Understanding Initial and Final Velocities

[brittanyStein]

my techer didnt finish going through everything and she wants us to teach it to ourselves and i don't understand so please help.

neglecting air resistance, the initial horizontal velocity of a projectile is ______ its final horizontal velocity

is it ...
greater than
less than
equal to
directly proportional

 

[mgb_phys]

If there is no air resistance what horrizontal forces act on the object after it's thrown