A 10-Kg Rock and a 20-Kg Rock Are Dropped at the Same

question 386

Multiple Choice

A 10-kg rock and a 20-kg rock are dropped at the same time and experience no significant air resistance. If the 10-kg rock falls with acceleration a , what is the acceleration of the 20-kg rock?

• A) 4a
• B) 2a
• C) a/4
• D) a/2
• E) a

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Definitions:

Profit-Maximizing Price

The price at which a firm can sell its product to earn the maximum possible profit on those sales.

Marginal Revenue

The additional income from selling one more unit of a good; it is the change in total revenue from an additional unit sold.

Marginal Revenue

The increase in revenue resulting from the sale of one additional unit of a product.

Maximum Level

The highest or utmost point, degree, or volume of something that can be achieved or reached.