Understanding Forces on an Inclined Plane: Free Body Diagrams
School
Lenoir Community College**We aren't endorsed by this school
Course
PHY 43681
Subject
Mechanical Engineering
Date
Dec 10, 2024
Pages
12
Uploaded by MagistrateClover25527
LAB 5: FORCES ON AN INCLINED PLANE
Navigate to:■https://ophysics.com/f3.html
Draw a free body diagram of each mass and paste it here:
Step 1: constant angle(θ)■Keep angle of inclination to 20° as shown in the screenshot on the next slide■Set the coefficient of friction to 0.26■Set the mass of cart 2 to 6 kg ■Adjust the mass of the suspended mass until the system is in equilibrium (a = 0). ■Note the value of m1in the table. ■Repeat for m2values of 7.5 kg and 9 kg. ■For one setup, calculate the expected value of m1 and paste a picture of your calculations on the slide after the table.
Angle of inclination [θ]Mass of cart [m2] in kgSuspended mass [m1] in kgCalculate m1 for one setup20°6 kg3.5 kg3.52 kg7.5 kg3.5 kg4.40 kg9 kg3.5 kg5.27 kg
Paste your sample calculations here:
Step 2- constant mass(m2)■Keep the mass of the cart (m2) constant at 7 kg as shown in the screenshot.■Set the coefficient of friction to 0.26■Set the angle of inclination to 25 degrees. ■Adjust m1until the system is in equilibrium –Record your value on the table ■Repeat for angles of 30 deg and 40 deg. ■Calculate the expected value for m1 by hand, take a picture of your calculation and paste it on the slide after the table
Mass of cart [m2] in kg Angle of inclination [θ] Suspended mass [m1] in kgCalculate m1 for one setup7 kg25°4.61 kg4.61 kg30°5.08 kg5.08 kg40°5.90 kg5.90 kg
Paste your sample calculations here:
Answer the following■If you plotted a graph of m1vs. the angle θ, would you expect to get a straight line through the origin? Why or why not?■You would not expect to get a straight line through the origin because the relationship between m1 and θis non-linear. As θincreases, both the gravitational component along the incline and the frictional force change at non-constant rates, which cases m1 to increase in a curved manner rather than linearly.