Momentum-Impulse - report template

docx

School

Brock University *

*We aren’t endorsed by this school

Course

1P91

Subject

Electrical Engineering

Date

Dec 6, 2023

Type

docx

Pages

Uploaded by MateSteel12841

TABLES: UNIT VALUE Start time t 0 s 0.75 Stop time t f s 1.07 Δt s 0.32 Area under curve ∫ y Ns 0.04 F net N 0.13 UNITS VALUE UNCERTAINTY Δv m/s 0.15 0.003 UNITS VALUE UNCERTAINTY iOLab mass m iolab g 210.66 0.005 UNIT VALUE Δp kg m/s 0.032 Percent difference N/A 21.61 UNIT VALUE Start time t 0 s 1.90 Stop time t f s 2.20 Δt s 0.30 Area under curve ∫ y Ns 0.04 F net N 0.13 UNITS VALUE UNCERTAINTY v i m/s -0.20 0.009 v f m/s 0.10 0.005 Δv m/s 0.30 N/A UNIT VALUE Δp kg m/s 0.063 Percent difference N/A 44.67

FIGURES: DISCUSSION: Starting From Rest: Looking at your force-time graph, explain physically why we calibrated to -100g for this experiment, instead of the +100g like usual. What law determines the force that the spring imparts on the force sensor? As the force increases up to peak force describe what happens to the compression of the spring. What would happen to your graphs if you changed the spring constant of the spring on the spring/screw attachment? Why do you only need to look at the velocity at the end of the impulse? Compare Δp with the area of the force-time graph impulse by computing the percent difference. Simple Collision: Is F net more or less than what you did with your hand above? Why? Compare Δp with the area of the force-time graph impulse by calculating the percent difference. Was your collision an elastic or inelastic collision? Where would some of the momentum gone if it were inelastic? BRIDGING CONCEPTS (answer at least 2 questions): In the second experiment (Simple Collision), we pushed the iOLab and then recorded the impulse when it hit our hard wall (or textbook). How would we have to change the experiment such that we could record and analyze the impulse of our push and the impulse of the collision of the textbook in the same run? What would the velocity-time and force-time graphs look like for this new trial? In this set of experiments, we used a new attachment on the force sensor which was a spring attached to a screw. However, we never used the spring constant or the fact that it was a spring in the numerical analysis. Could we have done this experiment with the eyebolt attachment? If possible, give an explanation as to why the spring attachment may have been chosen. If not possible, explain why.

If we had attached additional masses to the iOLab such that the mass of the iOLab device was doubled, what would change about the experiments? Would the change in momentum still be equal to the impulse? What would happen in the second experiment (simple collision) if the iOLab and the textbook were on a conveyor belt moving at a constant velocity? Assume iOLab was not rolling on its wheels before we tapped it (i.e. it is at rest from the perspective of the textbook before the tap of the experimenter).

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version