Term
Why does a bowling ball move across a surface with no acceleration? 

Definition
There is no horizontal force 


Term
without air resistance, why does the horizontal velocity remain constant but the vertical component changes? 

Definition
there is gravitational pull in the vertical component, but not the horizontal 


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

Definition


Term
If a ball is thrown at a curve and one is thrown horizontally; which strikes the ground first? 

Definition


Term
How far below an initial straight line will the ball be after one second 

Definition


Term
At what angle will you get the largest altitude? range? 

Definition
75 degrees, and 45 degrees 


Term
If the ball's release velocity (upwards) is 20m/s what will the velocity be when caught? 

Definition


Term
If you throw a ball horizontally at initial velocity of 20 m/s what will the velocity be when caught at the other end of the plane? 

Definition


Term
Does speed change if air resistance is a factor? 

Definition


Term
When no horizontal force is acting on the projectile, the horizontal force remains ___ 

Definition


Term
the vertical component changes with ___ 

Definition


Term
the horizontal and vertical components are ____ of each other 

Definition


Term
the ball's horizontal component is ___ 

Definition


Term
the moving object moves the same horizontal distance in ____ time 

Definition


Term
there is ____ forces acting on the horizontal component 

Definition


Term

Definition


Term
the only acceleration of the ball is in the ______direction 

Definition


Term
A ball launched at a curve and a ball launched straight, will land _____ 

Definition


Term
the path of a projectile with the only acceleration in the vertical direction with a constant horizontal is ____ 

Definition


Term
to find the distance of a ball's location from the nongravity line, use this equation 

Definition


Term
At the top of the parabola, the vertical component = ___ 

Definition


Term
What number must two equidistant angles add up to? 

Definition

