The Top of a Ladder Slides Down a Vertical Wall

question 11

Multiple Choice

The top of a ladder slides down a vertical wall at a rate of 0.15 m/s . At the moment when the bottom of the ladder is 1.5 m from the wall, it slides away from the wall at a rate of 0.3 m/s. How long is the ladder?

• A)3.9 m
• B)3.4 m
• C)4.4 m
• D)2.9 m
• E)2.4 m

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Definitions:

Price Level

The economy-wide average price for the entirety of goods and services produced.

Profit Per Unit

The amount of net income earned by selling one unit of a product, calculated as the sales price minus the cost of production per unit.

Aggregate Supply Curve

A graphical representation that shows the total quantity of goods and services that producers in an economy are willing and able to supply at different price levels.

Price Level

A measure of the average prices of goods and services in an economy, indicating the cost of living and inflation rates.