A Uniform Disk of Radius 1

question 42

Multiple Choice

A uniform disk of radius 1.2 m and mass 0.60 kg is rotating at 25 rad/s around an axis that passes through its center and is perpendicular to the disk.A rod makes contact with the rotating disk with a force of 4.5 N at a point 0.75 m from the axis of rotation as shown.The disk is brought to a stop in 5.0 s.What is the coefficient of kinetic friction for the two materials in contact?

• A)0.22
• B)0.15
• C)0.64
• D)0.37
• E)0.55

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Definitions:

Fixed Costs

Expenses that do not change in total regardless of the level of production or sales volume.

Transfer Price

The price charged for goods or services transferred between divisions or branches of the same company.

Pump Division

A designated segment of a business focused on the production or sales of pumps.

Pool Products Division

A segment within a company focused on the development, production, and sales of products related to swimming pools.