Essay on projectile motion, Schemes and Mind Maps of English Language

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Typology: Schemes and Mind Maps

2021/2022

Uploaded on 12/13/2023

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Department of Mathematics, Statistics and Physics
Course: Experimental General Physics for the Engineering I (PHYS 192)
Fall 2020
Name of Instructor:
Lab report of the Experiment
(Projectile)
2. Theory
When an object is launched at an angle into the air, it follows a trajectory
path that is known as a “Projectile” and its motion is known as “ballistic”.
When the projectile is launched, it travels under the influence of gravity
and other friction forces exerted by the air, such as “Air resistance”.
However, in this experiment we will neglect the effect of air resistance.
Name of Student
University ID
CRN No.
Lab Session
Experiment date
pf3
pf4

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Department of Mathematics, Statistics and Physics

Course: Experimental General Physics for the Engineering I (PHYS 192)

Fall 2020

Name of Instructor:

Lab report of the Experiment

(Projectile)

2. Theory

When an object is launched at an angle into the air, it follows a trajectory

path that is known as a “Projectile” and its motion is known as “ballistic”.

When the projectile is launched, it travels under the influence of gravity

and other friction forces exerted by the air, such as “Air resistance”.

However, in this experiment we will neglect the effect of air resistance.

Name of Student

University ID

CRN No.

Lab Session

Experiment date

With the knowledge of initial conditions, we can determine the range, time

etc. Moreover, we can have a better understanding of the projectile

motion, by setting up graphs with x-axis vs y-axis. Since, gravity only acts

vertically, the vertical motion is under constant acceleration (g) pointing

downwards with the value g = -9.81 m/s^2. On the other hand, the horizontal

motion experiences no forces, thus we can conclude that there is no

acceleration along the x-axis.

3. Procedure and Equipment’s.

 Procedure

o Adjust the angle to the given value

o Place the ball in the ballistic unit

o Load the spring in the first position

o Release the spring

o Spot the mark made by the ball on the cartoon paper

o Measure the range travelled by the ball

o Record the initial velocity measured

o Repeat

 Equipment

o Ballistic launcher with velocity meter

o Meter rod

o Cartoon paper

o Power supply for the ballistic unit

4. Data & Graphs

Launch Angle ϑ (°) Uncertainty on launch angle (°) Initial velocity (m/s) Range (m) v1 v2 v3 R1 R2 R 30 1 2.50 2.49 2.48 0.665 0.664 0. 40 1 2.47 2.47 2.47 0.723 0.724 0.

3. Error percentage= ((Experimental Velocity-Average velocity)/Experimental

velocity) *100 =1.72%.

The error percentage measured is very small with an uncertainty of 0.64, which

makes the results acceptable. This error is probably due to the air resistance. As

for range, parallax error could be a possibility when measuring the range using

the ruler.