A Ball Bearing Is Placed on an Inclined Plane and Begins

question 131

Multiple Choice

A ball bearing is placed on an inclined plane and begins to roll. The angle of elevation of the plane is $\theta$ radians. The distance (in meters) the ball bearing rolls in $t$ seconds is $s ( t ) = 4.1 ( \sin \theta ) t ^ { 2 }$ Determine the speed of the ball bearing after $t$ seconds.

• A) speed: \(5.1 ( \sin \theta ) t ^ { 2 }\) meters per second
• B) speed: \(( \sin \theta ) t ^ { 2 }\) meters per second
• C) speed: \(8.2 ( \sin \theta ) t\) meters per second
• D) speed: \(8.2 ( \cos \theta ) t\) meters per second
• E) speed: \(4.1 ( \sin \theta ) t ^ { 2 }\) meters per second

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Definitions:

Direct Labor Hours

The total hours worked by employees directly involved in the manufacturing process of a product.

Departmental Overhead Rates

The overhead costs charged to specific departments based on their respective activities or consumption of resources.

Machine Hours

The total number of hours that machinery is operating during a certain period, often used in costing and operational efficiency analysis.

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Decorative interior panels made from oak wood, often used in furniture, flooring, and wall covering.