# 11 drag across the region of the graph corresponding

• Notes
• 3

This preview shows page 2 - 3 out of 3 pages.

from the floating box and record the number in your data table. 11. Drag across the region of the graph corresponding to the block moving at constant velocity. Click on the Statistics button again and read the average (or mean) force during the time interval. This force is the magnitude of the kinetic frictional force. 12. Repeat Steps 9-11 for two more measurements and average the results to determine the reliability of your measurements. Record the values in the data table. 13. Add masses totaling 250 g to the block. Repeat Steps 9 – 12, recording values in the data table. 14. Repeat for additional masses of 500, 750, and 1000 g. Record values in your data table. PART III – KINETIC FRICTION AGAIN In this section, you will measure the coefficient of kinetic friction a second way and compare it to the measurement in Part II. Using the Motion Detector, you can measure the acceleration of the block as it slides to a stop. This acceleration can be determined from the velocity vs . time graph. While sliding, the only force acting on the block in the horizontal direction is that of friction. From the mass of the block and its acceleration, you can find the frictional force and finally, the coefficient of kinetic friction. Figure 2

Subscribe to view the full document.

PHYS 15200 Mechanics IUPUI Physics Department Lab04: Friction Page 3 of 3 15. Connect the Motion Detector to DIG/SONIC 1 of the Vernier computer interface. Open the “12b Static Kinetic Frict” in the Physics with Computers folder.
You've reached the end of this preview.
• Spring '08
• BUTTON
• Force, Friction, Vernier motion detector, Vernier Force Sensor, IUPUI Physics Department

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern