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Unformatted text preview: Robert Crescenzi 10/8/10 Lab #112 1. Title: Newton’s Second Law 2. Objective(s): To apply Newton’s second law and onedimensional motion equations to calculate the acceleration, velocity and time that a glider with added mass on a frictionless air track will move a given distance under difference hanging masses. To experimentally measure the acceleration, velocity, and time to check to see if our calculations are correct. To get more familiar with Newton’s 2nd Law and onedimensional equations. 3. Background: Sum of Forces=(mass)*(acceleration) …when acceleration is constant… 4. Procedures: We first set up all of the equipment according to the diagram given to us in our lab book. We then measured the mass of the glider and bumper blade to get Mg. We scaled all four of the masses and averaged them together. We measured Xo and L of the experiment. (Part 1) After measurements, we performed 3 trials of the experiment by releasing the glider and recording the data we need on LabPro. Each trial had more mass on the glider and hanging mass than the previous one. Next, we compared our results with our calculated data. They seem to be pretty close together. All data in Part 1 was recorded in Data Table 1. (Part 2) Like the first part, we did our calculations to get theoretical acceleration, velocity, and time. We also put a wooden block under the air track to create an angle of inclination. Our angle measured to be 4 degrees.  After calculations, we performed 3 trials of the experiment by releasing the glider and recording the data we need on LabPro. Each trial had more mass on the glider and hanging mass than the previous one. 5. Data and Calculations: Given Info: Mg=.190 kg M1=.050 kg Xo=.100 m L =.600 m Data Table 1: Data Table 2: (Theta=4 degrees) 6. Discussion: 1. I don’t think that the linear density of the cord would affect the experiment enough to be significant because the force of tension would not change, it would just be distributed differently. 2. The glider velocity would be too small if the flag is not parallel because the width of the flag would decrease hence making the numerator smaller, making the end result of velocity smaller. 3. the acceleration would be (acceleration)*cos(1) away from the true result because the equation for Newton’s 2hd Law is F=m*a*cos(theta) and the degree would be 1 off. 7. Conclusion: In conclusion to this lab, I have gained a much better understanding of Newton’s 2nd Law and onedimensional equations. Overall, my group’s calculated data was not very far off from the experimental data. If I could do this lab again, I would redo part 1:trail 1 until we received results that were closer to our calculations. ...
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This note was uploaded on 03/21/2011 for the course PHYS 111A taught by Professor Universal during the Fall '10 term at NJIT.
 Fall '10
 Universal
 Physics, Acceleration, Friction, Mass

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