1.Weigh the cart hanger, and three 20-g masses together and record the value in
ID: 1416129 • Letter: 1
Question
1.Weigh the cart hanger, and three 20-g masses together and record the value in the table below. 2.Weigh the hanger and a single 20-g mass, then the hanger and two 20-g masses, and finally the hanger and three 20-g masses, and record the values in the table below You will need these values for your calculations after you have taken data. Mass (kg) Total mass of the cart, hanger, and three 20-g masses (m ata) Total mass of the hanger and one 20-g mass Total mass of the hanger and two 20-g masses Total mass of the hanger and three 20-g masses Run #1: 1. With two 20-g masses on the cartand one on the hanger, pullthe cart25 cm back from the end stop. 2. Click Start. Release the cart. Stop the cart before it hits the pulley and click Stop Run #2: 3. Move one of the 20-g masses from the cart to the hanger Pullthe cart25cm back from the end stop. 4. Click Start. Release the cart Stop the cart before it hits the pulley and click Stop Run #3: 5. Move another of the 20-g masses from the cart to the hanger (all three masses should nowbe on the hanger). Pull the cart25 cm back from the end stop 6. Click Start. Release the cart Stop the cart before it hits the pulley and click Stop 7. Using Datestudio the students obtained the following experimental acceleration for each run. Run Acceleration aexp (m/s2) Lab Report 1.For runs s1, 2, 3, the total mass of the system (mass ofcart plus mass ofhanger is constant and the net force (mass of hanger x 98 increases. Record the mass and the net force, F-et, in the table below Assuming no friction, the net force is the weight of the hanger (mass x 9.8 m/s2). Run Masses hanger (kg) Masses cart (kg) Fnct (N) 2. Calculate the theoretical acoeleration, an, when the massisconstantand the netforoeiischanged and record the calculations in the table bekow The acceleration is the ratio of the net force divided by the total mass. maart mhanger 3. Find the percent error between the theoretical and experimental acceleration and record itin the table below Run ath (m/s aexp (m/s2) errorExplanation / Answer
1) masses + cart = 0.583 kg , 0.60 kg , 0.622 kg
=> Fnet = 0.186 N , 0.338 N, 0.684 N
2) ath = 0.321 m/sec2 , 0.562 m/sec2 , 1.12 m/sec2
aexp = 0.35 m/sec2 , 0.57 m/sec2 , 1.2 m/sec2
3) % error = 8 % , 1.4 % , 6.6 %
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