Term
In the absence of air resistance, why does the horizontal component of velocity for a projectile remain constant while the vertical component changes? 

Definition
Because the horizontal component has no forces while the vertical component has a force of gravity that increases the directions. 


Term
How does the downward component of the motion of a projectile compare with the motion of free fall? 

Definition
They are equal (The vertical component of velocity is the same as freefall.) 


Term
what side goes gravity go on in a yIx chart? 

Definition


Term
Any object that moves through the air or space acted on by gravity alone (and air resistance) 

Definition


Term
Horizontal and vertical motion are _______ and _______ rely on each other. 

Definition


Term
combined, horizontal and vertical motion form a projectile's _________ 

Definition


Term
What do you do with the x=vx times T formula on a vertical problem? 

Definition
Divide each side by T. So eventually you will be dividing your x over your t to get your answer. 


Term
how do you solve a problem w/o the y? 

Definition
first divide vx by x=vx+t so you have x over vx. Divide that then with your answer use the formula y=1/2gt^2 

