A Ball Is Dropped from a Rooftop of a Building

question 22

Multiple Choice

A ball is dropped from a rooftop of a building and falls for two seconds. The acceleration of gravity is 9.8 m/s2. The ball is referred to at the two-second time.
-The velocity of the ball in m/s is

• A)0.
• B)4.9.
• C)9.8.
• D)19.6.
• E)none of these.

---

Definitions:

Aggregate Expenditure

The total spending on goods and services in an economy at a given price level, including consumption, investment, government spending, and net exports.

Aggregate Expenditure

The total amount of spending in the economy that includes consumption, investment, government spending, and net exports.

Consumption

The use of goods and services by households, constituting one of the major components of gross domestic product (GDP).

Planned Investment

Expenditures that businesses intend to make for the purposes of capital improvements, equipment, or inventory.