A Dump Truck Has a Large Cubical Concrete Block in Its

question 16

Multiple Choice

A dump truck has a large cubical concrete block in its bed.The coefficients of friction between this block and the floor of the bed are µ_k = 0.450 and µ_s = 0.650.As the bed is slowly tilted above the horizontal,will the brick first begin to slide or will it first tip over?

• A) It will first tip over.
• B) It will first begin to slide.
• C) It will tip over just as it begins to slide.
• D) It is impossible to answer without knowing the mass of the block.
• E) It is impossible to answer without knowing the dimensions of the block.

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Definitions:

Innkeepers

Entities that are regularly in the business of making lodging available to the public.

Strict Liability

Liability in which responsibility for damages is imposed regardless of the existence of negligence. Also called liability without fault.

Causa Mortis

Causa mortis, or in contemplation of death, refers to gifts or actions taken by an individual who believes their death is imminent.

Immediate Death

The rapid loss of life following an event or condition, without a prolonged period of illness or decline.