Multiple-Object Systems Without Friction: a Series of Weights Connected by Very

question 61

Multiple Choice

Multiple-object systems without friction: A series of weights connected by very light cords are given an upward acceleration of 4.00 m/s² by a pull P, as shown in the figure. A, B, and C are the tensions in the connecting cords. The SMALLEST of the three tensions, A, B, and C, is closest to

• A) 80.0 N.
• B) 196 N.
• C) 276 N.
• D) 483 N.
• E) 621 N.

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Definitions:

Kinked Demand Curve Model

Oligopoly model in which each firm faces a demand curve kinked at the currently prevailing price: at higher prices demand is very elastic, whereas at lower prices it is inelastic.

Rivals' Price

The cost set by competing businesses for similar products or services in the market.

Marginal Cost

The additional cost associated with producing one more unit of output.

Profit Maximizing

The process or strategy of adjusting production levels, pricing, and other operational parameters to achieve the highest possible profit.