Projectile Motion Concepts

An object that moves through the air is acted on only by gravity is a ____

projectile

The path taken by a projectile is called a _____

trajectory

The shape of the path taken by a projectile is called a _______

parabola

A projectile flies through the air only under the influence of _____

gravity

The vertical component of a projectile's motion is _______ of the horizontal component of the projectile's motion.

independent

A projectile undergoes constant _______ velocity and constant vertical ________

horizontal, acceleration

A ball dropped off a cliff at the same time another ball is thrown horizontally off the cliff will land ________

at the same time

The optimal angle to launch a projectile is at ______ so it will travel the farthest.

45

The horizontal acceleration of a projectile is

0

The vertical acceleration of a projectile is

9.8 m/s^2

The initial vertical velocity for a projectile launched horizontally is

0

The velocity is always ______ to the path of the projectile

tangent

When a projectile is launched at an angle, at the top (apex) of its path the vertical velocity is _____________ and the hoz velocity is equal to the _______

zero
initial hoz. velocity

An angled projectile has a flight time of 6.8s. The projectile reaches its max height at a time of

3.4 s

complementary angles give a projectile the same

range

The vertical component of a projectile is _________ the hoz component when launched at an angle of 45 deg

equal to