Projectile Motion
Purpose:
An object in a projectile motion move horizontally with no acceleration and vertically with the gravitational acceleration at the same time. This experiment is to investigate projectile motion using experiments, equations and comparing the expected and experimental data. Procedure:

Case I:
Use formulas to find equation of horizontal Range (R) in a projectile motion. Rearrange equation for Rmax, and find the angle
Adjust the launches angle to angle
Launch the ball, measure Rmax
Use the equation to solve for initial speed
Case II:
Calculate new R=80/100Rmax
Use to calculate ()
Find out another expected angle , and find its relation with Adjust the launch angle to , launch the ball and measure R
Adjust the launch angle to , launch the ball and measure R
Compare R1 and R2 with R
More Calculation:
Calculate components of velocity for both cases using expected value Calculate maximum height for case I only
Data and Calculations:
In Projectile Motion:
Horizontally (x-direction)：
a=0, v=V, X=vt,
Vertically (y-direction):
a=-g, y=vt-1/2gt
Also, v=vcos, v=vsin
We can get R=
Case I:
As -1≤sin2≤1, so sin(2)max=1, so Rmax=v/g, and =45
When the launch angle is 45， Rmax from experiment we get was 1.75m Using equation, we can calculate for V==4.14m/s
Case II:
R=80/100Rmax=1.4m
As, R=, SO expected values of are , and
When the launch angle is 26.6, the range we get R=1.45m;
When the launch angle is 63.4, the range we get R=1.35m.
They are both around the expected range which is R=1.4m
More Calculation:
Components of velocity
For case I:
V=Vcos45=2.93m/s,
V=Vsin45=2.93m/s
For case II:
When angle is 26.6, v=Vcos26.6=3.7, V=Vsin26.6=1.85 m/s When angle is 63.4, v=Vcos63.4=1.85, V=Vsin63.4=3.7m/s Maximum height for case I
Rmax=Vt, t= Rmax/V = 1.75/2.93=0.597s
Hmax=V(t/2)-1/2g(t/2)=2.93*(0.597/2)-1/2*9.81*(0.597/2)=0.438m Conclusion:
For case one, we...

...Lab II, Problem 3:
ProjectileMotion and Velocity
Oct. 06, 2013
Physics 1301W, Professor: Hanany, TA: Vladimir
Abstract
A ball is tossed obliquely. The vectors of position and velocity are measured.
The acceleration is calculated.
Introduction
A toy company is now making an instructional videotape on how to predict the position. Therefore, in order to make the prediction accurate, how the horizontal and vertical components of a...

...Abstract
In this lab experiment the range equation will be used to calculate range of the launched rocket, initial velocity and distance traveled. Various projectiles will be tested at various angles and table heights for experiment one. Results will be compared to initial calculations. Despite human error and calculation error, the results still correlated with the hypothesis.
Introduction
Background
Acceleration is constant at 9.8 m/s2 because of the force...

...throw off your calculations for distance.
With all the formulas involved, it is possible to type a wrong number into the calculator.
I believe our calculations for velocity and distance from the trials at different angles give a good picture projectilemotion. If a ball is shot up in the air at an angle 45°, it has a greater distance and velocity than a ball that is being shot horizontally at 0°....

...Example ProjectileMotionLabReport
You may not copy the exact words here in any way on a re-written lab.
Determination on the Effect of Angle on the Range of a Projectile
Joselyn J. Todd, other science students, and even other science students
Sept. 12, 2006
Joselyn J. Todd, Example Lab, 9/12/2006
2
Introduction
Parabolic motion has been studied for a long time...

...ProjectileMotion
You have probably watched a ball roll off a table and strike the floor. What determines where it will land? Could you predict where it will land? In this experiment, you will roll a ball down a ramp and determine the ball’s velocity with a pair of Photogates. You will use this information and your knowledge of physics to predict where the ball will land when it hits the floor.
[pic]
Figure 1
objectives
* MEASURE THE VELOCITY OF...

...hill. Determine the initial horizontal velocity of the soccer ball.
Problem Type 2:
A projectile is launched at an angle to the horizontal and rises upwards to a peak while moving horizontally. Upon reaching the peak, the projectile falls with a motion that is symmetrical to its path upwards to the peak. Predictable unknowns include the time of flight, the horizontal range, and the height of the projectile when it is at its peak....

...
Lab 4 ProjectileMotion
Sai Moua
Purpose: The purpose of this lab was to define what the initial velocity of the ball when it is launched out of the pipe. Our next objective is to determine at what angle that the ball will be ejected at the maximum range. Lastly, we predict and confirm the range before we launch the ball at a certain angle.
Theory: Projectilemotion according to Dr. James S. Walker...

...Title
ProjectileMotion
Abstract
A projectile was fired from atop an elevation and an angle. The initial velocity for each
firing was likely to be the same. The distance traveled in the horizontal direction was measured
for multiple firings of each trial, and the values were averaged. When the initial velocity for
each of these averages was calculated it was proved that the initial velocity was relatively ...