Projectile motion

When dropped, an object's initial velocity is:

0 m/s

A helicopter flies 3000 meters east, and then flies 4000 meters north. What is the resultant vector?

5000 M North East

acceleration due to gravity

9.8 m/s^2

To find Vx, the __ function is used

Cosine

To find Vy, the _ function is used

Sine

Describe a Velocity/Time Graph for an object in free-fall

A straight line, with a slope of 9.8

Describe a Displacement/Time Graph for an object in free-fall

A slight curve, which eventually becomes drastically more extreme as a function of time.

In projectile motion, the trajectory can be broken to its ___ components.

X and Y

The vertical and horizontal components in two-dimensional motion are _ of each other

Independent

To calculate time in a free fall problem, what equation is used?

t = Square Root of 2y/g

In a free fall problem, the object is assumed to have no

horizontal velocity

In a free fall problem with an initial horizontal velocity, what equation is used to calculate horizontal distance?

X=VxT

A projectile will continue to rise until it's vertical velocity reaches

0

To find the angle of a projectile is launched at, one must use Vx and Vy with what trig function?

Tangent

When half of an object's travel time has elapsed, the object has reached it's _

highest point

The only variable common between the X and Y axis of motion is

time

An object's horizontal speed is _ throughout the entire trajectory

constant

Higher launch angles have a _ maximum height.

higher

Trigonometry can be used to mathematically calculate the of two vectors.

resultant

The path a projectile takes is known as it's

trajectory