An arrow whistles as it travels through the cool crisp air. Higher and higher it rises, up towards the heavens. It is soaring across the clear blue sky as it begins to fall. Gaining speed now, it is coming back to earth. What will be its fate?

An arrow is a good example of a projectile. A projectile is an object upon which the only force acting is gravity. It usually undergoes vertical motion as well as horizontal motion. The projectile, or in this case the arrow, is always being accelerated downwards. (What is a Projectile,1996-2001) As long as an arrow is traveling forwards it has a constant horizontal vector. Its vertical vector changes as it goes up and down. The horizontal vector stays constant because the projectile is still traveling in one direction. The vertical vector changes because the projectile is moving in one direction, up, and then in another, down. It can also have a constant vertical vector though. If a projectile were pushed off a cliff with no rising motion, then it would also have a constant vertical vector. (Motion, Energy, and Simple Machines, 1996)

So what is a vector anyway? A vector is the direction of motion that a projectile travels. It is made up of a magnitude and a direction. (Vector, 1991) There are two vectors, a vertical vector and a horizontal vector. They are not related. Horizontal and vertical vectors do not affect one another. The vectors play a part in the trajectory of projectile flight.

Vectors are not the only factors that play a part in projectile flight and trajectory. There are also velocities. The two kinds of velocity are vertical and horizontal. A velocity is the speed a projectile is traveling in a certain direction. The velocities are completely separate of one another. (Velocity, 1991) For example the speed of which a projectile is traveling horizontally does not affect the speed of which it is traveling vertically. In the same sense, the vertical velocity will not affect how far a projectile...

...Projectilemotion
into physics
Objective:
Our purpose for this lab was to observe projectilemotion and use the equations of motion to predict the objects location in different instances of time. We used a projectile launcher and a ball to observe these properties of motion. The main equation used in this lab was d=Vit+1/2at^2 where Vit will produce the distance due to constant...

...Physics
3 . ProjectileMotion
Objectives:
Students will measure the maximum height H and the range R of a projectilemotion.
They will study the effect of the shooting angle on H and R.
Material used:
4 rulers, track, metallic ball, landing track, A4 white paper, red carbon paper, timer + supply, gun
+ protractor.
Theory:
A projectile is an object upon which the only force acting is gravity. There are a variety...

...focus was projectilemotion. A projectile is an object flying through the air that is only under the force of gravity (neglecting air resistance). A projectile moves both horizontally and vertically, which creates a parabolic flight path. In vertical projectilemotion there is a constant velocity since there are no forces in the horizontal direction (neglecting drag due to air resistance)....

...solution for the two dimensional motion of an object thrown in a gravitational field. This is usually termed a projectilemotion problem. The thrown object is called the projectile. Its path is called the trajectory. We will answer all the usual questions that arise in a first year physics class regarding this motion. We will not consider air resistance. Without air resistance, the projectile will follow a...

...ProjectileMotion
PHYS111
Formal Report 2
University of Canterbury
Campbell Moulder
Abstract
The force of gravity is said to be a constant of 9.81 ms-2 (3). This can be proved by measuring the projectilemotion of a bouncy ball and plotting a ∆Vertical Velocity vs. Time graph, the gradient of which should equal the constant force (acceleration due to) of gravity. Our gradient value of 10.26±0.49 ms-2 is consistent with the...

...Freefall and ProjectileMotion
Introduction and Objectives
This lab experiment was done to determine the characteristics of free fall and projectilemotion in Physics. The motion in which a body is thrown or projected is called Projectilemotion while free fall is any motion of a body where gravity is the only force acting upon it, at least initially.
In this experiment, a...

...Section 001
CP1 Lab Report - ProjectileMotion
October 12, 2009
The purpose of Lab Assignment 1 was to analyze projectilemotion. In doing so, we determined the initial velocity of the ball shot horizontally from the spring loaded projectile launcher. Also, we verified the angle at which the projection of the ball would produce a maximum range. Lastly, we predicted the range that a ball would travel at a...

...is ProjectileMotion. ProjectileMotion is a special case of two-dimensional motion. Gravity is the only considered external force acting on it while an object is airborne. Projectile is the moving body in this kind of motion. It refers to any object thrown, launched or otherwise projected so that once released, if air resistance is neglected, its path is affected only by the Earth’s gravity. As...

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