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 axe against the rim with a normal force of 160 N (see Figure below), and the grindstone comes to rest in 7.50 s.What is the moment of inertia of the grindstone?What force is bringing the grindstone to a stop? What is the net torque caused by that force?What is the size of the force?What is the coefficient of friction between the axe and the grindstone? m = 50.0 kgF = 160 N,

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Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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 axe against the rim with a normal force of 160 N (see Figure below), and the grindstone comes to rest in 7.50 s.

What is the moment of inertia of the grindstone?
What force is bringing the grindstone to a stop? What is the net torque caused by that force?
What is the size of the force?
What is the coefficient of friction between the axe and the grindstone?

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