A 30-Kg Particle Has a Position Vector Given by

question 9

Multiple Choice

A 3.0-kg particle has a position vector given by
Where
Is in meters and t is in seconds.What is the angular momentum of the particle,in kg⋅m²/s,about the origin at t = 2 s?

• A)72
• B)−72
• C)24
• D)−24
• E)22

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Definitions:

Price Higher Than Marginal Cost

A situation where the selling price of a product is set above the marginal cost of production, often leading to increased profitability but potentially distorting market efficiency.

Economic Profit

Economic profit is the difference between a firm's total revenue and its total costs, including both explicit and implicit costs, thereby measuring efficiency beyond accounting profit.

Long Run

In economics, the time period in which all factors of production and costs can be fully adjusted, contrasting with the short run where some costs are fixed.

Marginal Revenue

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