9. A grindstone in the shape of a solid disk with diameter 0.520 m and a mass of 50.0 kg is rotating at 850 rev/min. You press an ax against the rim with a normal force of 160 N (see) Figure 10,46), and the grindstone comes to rest in 7.50 s. Find the coefficient of kinetic friction between the ax and the grind- stone. There is negligible friction in the bearings. [Answer: 0.484] 50.0 kg -160 N A FIGURE 10.46 Problem 9.

9. A grindstone in the shape of a solid disk with diameter 0.520 m and a mass of 50.0 kg is rotating at 850 rev/min. You press an ax against the rim with a normal force of 160 N (see) Figure 10,46), and the grindstone comes to rest in 7.50 s. Find the coefficient of kinetic friction between the ax and the grind- stone. There is negligible friction in the bearings. [Answer: 0.484] 50.0 kg -160 N A FIGURE 10.46 Problem 9.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A grindstone in the shape of a solid disk with diameter 0.520 mm and a mass of 50.0 kg is rotating at 800 rev/minrev/min . You press an axe against the rim with a normal force of 160 NN (see the figure below (Figure 1)), and the grindstone comes to rest in 8.00 ss. There is negligible friction in the bearings. Find the coefficient of kinetic friction between the axe and the grindstone.
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