A Block Is Projected with Speed V Across a Horizontal

question 21

Multiple Choice

A block is projected with speed v across a horizontal surface and slides to a stop due to friction. The same block is then projected with the same speed v up an incline where it slides to a stop due to friction. In which case did the total mechanical energy of the block decrease the least?

• A) This problem cannot be solved since it was not indicated whether the horizontal surface and the incline both had the same coefficient of kinetic friction.
• B) The case on the horizontal surface had the least decrease in total mechanical energy.
• C) The case on the inclined surface had the least decrease in total mechanical energy.
• D) In both cases the decrease in mechanical energy was the same.

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Definitions:

Overhead Applied

The portion of overhead costs assigned to the production of goods or services.

Raw Materials Issued

The allocation or distribution of raw materials for use in the production process.

Labor Time Tickets

Paper or electronic forms used to track the amount of time a worker spends on a particular job or project, utilized for cost accounting and payroll purposes.

Factory Overhead

The total of all indirect costs associated with manufacturing, including utilities, rent for the manufacturing facilities, and maintenance.