In the Figure, a 700-Kg Crate Is on a Rough

question 67

Multiple Choice

In the figure, a 700-kg crate is on a rough surface inclined at 30°. A constant external force P = 5600 N is applied horizontally to the crate. As the force pushes the crate a distance of 3.00 m up the incline, the speed changes from 1.40 m/s to 2.50 m/s. How much work does gravity do on the crate during this process?

• A) -10,300 J
• B) -3400 J
• C) +10,300 J
• D) +3400 J
• E) zero

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Definitions:

Perfect Price Discrimination

A pricing strategy where a seller charges the maximum possible price for each unit consumed that a buyer is willing to pay, capturing the entire consumer surplus.

Marginal Revenue

is the additional revenue that a company gains from selling one more unit of a good or service.

Total Revenue

The aggregate income a company receives from its selling activities, calculated by multiplying the price of goods by the number of units sold.

Willingness to Pay

Willingness to pay is the highest price a consumer is prepared to spend on a good or service, reflecting the perceived value or utility.