Lab Report 1

.docx

School

Seminole State College of Florida *

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Course

1053C

Subject

Mechanical Engineering

Date

Dec 6, 2023

Type

docx

Pages

3

Uploaded by AgentWorldAlpaca18 on coursehero.com

Introduction: The main purpose of this lab was to find the fundamental principles of Newton's second law of motion, relating to force, mass, and acceleration. More specifically, we want to test the critical relationships between these physical quantities. In this experiment, we will find how external forces affect the acceleration of a dynamic cart. The main goal is to analytically confirm Newton’s second law observing a real-life example of force being directly proportional to acceleration and inversely proportional to mass. When mass and applied force are varied, and acceleration results are recorded, we will find a clear relationship between these variables, thus reinforcing the foundational principles between force and motion. In this experiment, we will vary the amount of mass within the cart while also maintaining a constant applied force, then we will alter the applied force while keeping the total mass constant. Therefore, we aim to test Newton’s Second law from two different angles, which confirms the consistency of the law in both scenarios. This experiment aims to establish a quantitative relationship between force and acceleration, which will then enhance our understanding of motion’s core principles. Procedure: In our first experiment, me and my group used the necessary equipment, including a dynamic cart with a picket fence flag, photogates, and a frictionless pulley system with weights. The first thing we did was determine the mass of the unloaded cart, then added four 50-gram masses to it, afterwards we calculated the total mass. The cart was connected to a string that ran over the frictionless pulley, with weights on the other end serving as the source of external force. To make sure there was a constant applied force while altering mass, we began with an empty hanger which was 50 grams and changed its position which made the carts string tightly stretched. We marked the initial position of the cart, using photogates to position it for accurate measurement. Lastly, I used a computer program with photogates to record the cart’s acceleration as it moved under the influence of the changing force. In the second experiment, we changed our approach to maintain a constant applied force while changing the mass within the cart by adding 50-gram weights. The cart’s motion was also monitored from photogates, with the primary goal of recording its acceleration. By collecting and analyzing data across these variations in mass and force, my group was able to discover and find the relationship between these physical parameters, while also sticking to the basic principles of Newton's second law.
Hanging Mass (kg) Applied Force (N) Acceleration (m/s2) Average Acceleration (m/s2) 0.050 0.490 0.952 1.002 0.973 0.975 0.100 0.980 1.713 1.695 1.727 1.7116 0.150 1.47 2.481 2.517 2.492 2.497 0.200 1.96 3.793 3.782 3.805 3.793 0.250 2.45 4.827 4.812 4.889 4.843 0 0.05 0.1 0.15 0.2 0.25 0.3 Hanging Mass 0 0.5 1 1.5 2 2.5 3 Applied Force (N) 0 1 2 3 4 5 6 Average
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