A 50-M Long, 12-Kg Uniform Ladder Rests Against a Smooth Vertical

question 30

Multiple Choice

A 5.0-m long, 12-kg uniform ladder rests against a smooth vertical wall with the bottom of the ladder 3.0 m from the wall. The coefficient of static friction between the floor and the ladder is 0.28. What distance, measured along the ladder from the bottom, can a 60-kg person climb before the ladder starts to slip?

• A) 4.0 m
• B) 3.7 m
• C) 1.7 m
• D) 1.3 m
• E) 3.3 m

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Definitions:

Diamond Mine

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an accounting and tax concept used to account for the reduction of a product's reserves, such as minerals, oil, and gas.

Salvage Value

The estimated resale or scrap value of an asset at the end of its useful life.

Depletion Expense

The allocation of the cost of natural resources over the period they are consumed or sold.