Two Identical Crates with 100 Kg Mass Are Being Pushed

question 44

Multiple Choice

Two identical crates with 100 kg mass are being pushed up at a constant speed an inclined plane that is at the angle of 20 degrees above the horizontal. One plane is frictionless, while the coefficient of friction between the crate and the other incline is 0.20. What is the absolute difference in work needed to push the crate a distance of 2.0 m along each plane?

• A) 670 N
• B) 1040 N
• C) no difference
• D) 370 N
• E) 134 N

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Definitions:

Fixed Costs

Costs that do not vary with the level of output or production, such as rent, salaries, and insurance premiums.

Marginal Revenue

The additional income from selling one more unit of a good or service.

Demand Function

A mathematical expression that describes the relationship between the price of a good or service and the quantity demanded by consumers.

Typeset

The process of arranging and setting text material for printing, historically done using physical types but now primarily done using computer software.