M3.0 Laboratory Report 2 Worksheet22 (1).docx

Name: ______Demauri Simpson____________________________________ M3.0 Laboratory Report 2 Worksheet PhET Simulation: Vector Addition Instructions  Before you start to work on this worksheet, review the M3.0 Laboratory Report 2 Instructions  Submit your completed work to the M3.0 Laboratory Report 2 dropbox. See the Schedule and Course Rubrics in the Syllabus Module for due dates and grading information. . Pre-Lab Activities: 1. Open the simulation using the link to PhET Interactive Simulations at the University of Colorado Boulder: https://phet.colorado.edu/sims/html/vector-addition/latest/vector-addition_en.html 2. Explore the four options available in the simulator 3. Select the option (Explore 2D). Part I: Vector Addition – Component (Analytical) Method. Part 1.1 Use the components method to add the following 2 vectors: 𝑎⃗ = 29.2, @31.0° and 𝑏⃗ = 16.2, @68.2° Procedure:

1. Click on vector segment 𝑎⃗ and drag it so the tail positioned at the origin of the graph. Adjust the vector to the given magnitude (drag the head of the vector to adjust the length) and rotate the vector to adjust the angle. 2. “Break” the vector into components (see Sample 1 below) and input the components into Table 1. 3. Insert a screenshot of your vector 𝑎⃗ and its components (as shown in Sample 1) Table 1 Vector Magnitude Direction (degree) x-component y-component 𝑎⃗ Cos 31o 29.2=25 31 29.2 a 𝑏⃗ Cos 68.2 68.2 16.2 b 𝑠⃗ Cos(-13.6 36o)=11 36- 13.6 s 4. Complete steps 1-3 for vector 𝑏⃗ . 5. Drag the 2 vectors with their tails positioned at the origin of the graph, as shown in Sample 2 below. 6. Click on the sum vector where 𝑠⃗ = 𝑎⃗ + 𝑏⃗ . 7. Record the magnitude and the angle for the resultant vector 𝑠⃗ in Table 1.

Part 1.2 Using the theoretical equations calculate the resultant sum of the same two vectors ( 𝑎⃗ = 29.2, @31.0° and 𝑏⃗ = 16.2, @68.2°) and insert your calculations in the lab report. Compare your calculated resultant to the one obtained with the simulator. Is it different from the experimental one? Explain. Part 1.3 Use the components method to add the following 3 vectors: 𝑎⃗ = 22.4, @26.6° 𝑏⃗ = 11.3, @ - 135.0°

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