Part I: A Rotational Equilibrium about the center of mass of the meter stick. Procedure: 1) Go to https://phet.colorado.edu/sims/html/balancing-act/latest/balancing-act_en.html 2) Then select "Balance Lab" icon Balancing Act Balance Lab 3) Select the "Mass levels", "Forces from Objects", "Level", and "Rulers" from the menu on the top right of the screen. Show V Mass Labels Foroes from Objects Level Position None Rulers Marks 4) Remove the pillars by clicking on the pillar icon in the center on the picture below the ruler. Fulerum Ruler Click to remove the pillars 5) Follow the steps below: a. Place a mass m, = 15 Kg at a 1 meter's mark r, from the center of mass of the meter stick. 2 75 14 12s as os os Meters es as a75 1 125 s 1 2 Meters b. Balance m, load with a m2 load by selecting m2 from the choices of masses on the right. (Note: you can click on right arrow to discover more combination of masses. Note down the distance (r2) from the center of mass where m2 balances the meter stick. Record the value in the data table I below. c. Keeping the location and value of m, constant, change m2 , balance the meter stick, and note down the distance r2. Repeat the steps for two more times. Page | 2

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Chapter1: Units, Trigonometry. And Vectors
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Static Equilibrium

Go to https://phet.colorado.edu/sims/html/balancing-act/latest/balancing-act_en.html 

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Part I: A Rotational Equilibrium about the center of mass of the meter stick.
Procedure:
1) Go to https://phet.colorado.edu/sims/html/balancing-act/latest/balancing-act_en.html
2) Then select "Balance Lab" icon
Balancing Act
Balance Lab
3) Select the "Mass levels", "Forces from Objects", "Level", and
"Rulers" from the menu on the top right of the screen.
Show
V Mass Labels
Foroes from Objects
Level
Position
None
Rulers
Marks
4) Remove the pillars by clicking on the pillar icon in the center on the picture below the ruler.
Fulerum
Ruler
Click to remove the
pillars
5) Follow the steps below:
a. Place a mass m, = 15 Kg at a 1 meter's mark r, from the center of mass of the meter stick.
2 75 14 12s as os os
Meters
es as a75 1 125 s 1 2
Meters
b. Balance m, load with a m2 load by selecting m2 from the choices of masses on the right. (Note:
you can click on right arrow to discover more combination of masses. Note down the distance
(r2) from the center of mass where m2 balances the meter stick. Record the value in the data
table I below.
c. Keeping the location and value of m, constant, change m2 , balance the meter stick, and note
down the distance r2. Repeat the steps for two more times.
Page | 2
Transcribed Image Text:Part I: A Rotational Equilibrium about the center of mass of the meter stick. Procedure: 1) Go to https://phet.colorado.edu/sims/html/balancing-act/latest/balancing-act_en.html 2) Then select "Balance Lab" icon Balancing Act Balance Lab 3) Select the "Mass levels", "Forces from Objects", "Level", and "Rulers" from the menu on the top right of the screen. Show V Mass Labels Foroes from Objects Level Position None Rulers Marks 4) Remove the pillars by clicking on the pillar icon in the center on the picture below the ruler. Fulerum Ruler Click to remove the pillars 5) Follow the steps below: a. Place a mass m, = 15 Kg at a 1 meter's mark r, from the center of mass of the meter stick. 2 75 14 12s as os os Meters es as a75 1 125 s 1 2 Meters b. Balance m, load with a m2 load by selecting m2 from the choices of masses on the right. (Note: you can click on right arrow to discover more combination of masses. Note down the distance (r2) from the center of mass where m2 balances the meter stick. Record the value in the data table I below. c. Keeping the location and value of m, constant, change m2 , balance the meter stick, and note down the distance r2. Repeat the steps for two more times. Page | 2
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