A Uniform Disk of Radius 1

question 51

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:

Sales Forecast

An estimate of the quantity of goods or services that an organization expects to sell in a particular period.

Raw Material Purchases Cost

The total amount spent on buying raw materials necessary for production.

Finished Goods Inventory

The stock of completed products that are ready to be sold but have not been sold yet.

Direct Material Requirements

The specific materials and quantities needed for the production of goods.