Projectile mail

Any object that moves through the air or space

Let’s think about objects that move in a straight line…

If there were no gravity, an object moving horizontally (in the x-direction) would continue to move _________________ in a straight line

If an object is dropped vertically (in the y-direction), then _________ causes it to _______________ downwards gravity accelerate

Projectile motion is a ________________ ! In the x-direction, it continues to move at a __________ speed, but in the y-direction, it ___________downwards because of gravity! combination constant accelerate

For a projectile: THE X-VELOCITY IS _________________ OF THE Y-VELOCITY!!! The speed in the x-direction doesn’t care what the speed in the y-direction is! INDEPENDENT

Remember that _____________ is only pulling in one direction ( __________ !) and nothing is pulling ________________ If there were no gravity, a projectile would go _____________forever: gravity down right or left straight

Remember that velocity has a ____________ , so it can be represented using ____________ ! We can break down the velocity into separate x- and y- components: direction vectors

Let’s examine the x and y velocity vectors for a projectile: Its x-velocity stays __________and its y-velocity _____________. constant increases

X- Component Y- Component Vectors Note: g= 9.8 m/s^2

Just like in free-fall: Velocity in the y-direction ___________ on the way up, and ____________ on the way down At the top of the path, the y-velocity is always ______ Velocity on the way up ________velocity on the way down when you reach the same _________ decreases increases zero equals height

If you were walking at a constant velocity with a baseball and threw it up into the air while you were walking, would it fall A. in front of you B. behind you C. right back into your hands? Why??

Its y-velocity is different than yours, but its x-velocity stays the same as you. It should land back into your hands!

An airplane is carrying a bomb and traveling with a velocity of 1,100 mph east. If it releases its bomb and continues at that velocity, will the bomb land: A. Directly underneath the plane B. Behind the plane C. Ahead of the plane

If they’re going at the same x-velocity, it will land directly beneath the plane!

Suppose two balls released from the same height: one is dropped from rest, and the other is thrown horizontally. Which will hit the ground first? Why? They will hit at the same time, because they are both being pulled by gravity at the same rate! Only one will have a greater x-range.

Your x- distance is called your __________and your y-distance is called your __________ . Your range and height depend on: The _______ that the projectile is launched at and The __________it is launched at range height angle velocity

Increasing your angle increases your range until you reach 45 °. 45° to 90°, increasing your angle decreases your range.

The greater the initial velocity of a projectile, the ____________it will go: farther

An object is fired from the ground at 100 meters per second at an angle of 30 degrees with the horizontal Calculate the horizontal and vertical components of the initial velocity After 2.0 seconds, how far has the object traveled in the horizontal direction? How high is the object at this point?

Earth Small horizontal velocity

Earth Medium horizontal velocity

Earth Fast horizontal velocity

A projectile is always falling. The faster it moves horizontally, the farther away it will be when it hits the ground. Slow Medium Fast

Projectile mail

More Related Content

Viewers also liked (20)

Similar to Projectile mail (20)

Recently uploaded (20)

Projectile mail