Three Boxes Rest Side-By-Side on a Smooth, Horizontal Floor

question 93

Multiple Choice

Three boxes rest side-by-side on a smooth, horizontal floor. Their masses are 5.0 kg, 3.0 kg, and 2.0 kg, with the 3.0-kg mass in the center. A force of 50 N pushes on the 2.0-kg mass, which pushes against the other two masses. What is the contact force between the 3.0-kg mass and the 2.0-kg mass?

• A) 0 N
• B) 10 N
• C) 25 N
• D) 40 N
• E) 50 N

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Definitions:

Interest Rate

The cost of borrowing money or the return on savings, often expressed as a percentage of the principal.

Spending Multiplier

An economic concept indicating the ratio of change in aggregate income to an initial change in spending, illustrating how initial spending leads to increased total spending.

Aggregate Demand Curve

A graph demonstrating the amount of products and services desired by households, companies, the government, and foreign buyers at various price points.

Expansionary Monetary Policy

A policy by central banks to increase the money supply and lower interest rates, aiming to boost economic activity and reduce unemployment.