Object

Projectile

Path

Trajectory

assumed to be constant

Horizontal Component

horizontal distance

-depends on horizontal component and time

range

also known as 2 dimensional motion

projectile motion

An object that is thrown has a(n) _____ horizontal velocity that is equal to ____

constant, zero

In both cases, there is no horizontal force acting on the projectile after it is released, so there is no horizontal ____

increase

Both a thrown object and a dropped object are accelerated downward by the _____

force of gravity

The amount of acceleration of the thrown object is ____ the amount of acceleration of the dropped object.

equal

A projectile launched from a moving source will have different trajectories when seen by observers with different ____

points of view

An observer moving with the source of the projectile will see the trajectory as having no _______ component.

horizontal

However, an observer not moving with the source of the projectile will see the trajectory as having both a(n) ______ and _____ component

horizontal, vertical

If a projectile is launched horizontally, its initial horizontal velocity may vary, but the initial vertical velocity is ____.

zero

As the projectile follows its trajectory, its vertical velocity _____ while its horizontal velocity _____

increases, stays the same

When the object returns to the launch position, the vertical speed is _____ as it was at the launch and its direction is ______

equal, opposite