The Position of an Object as a Function of Time

question 43

Multiple Choice

The position of an object as a function of time is given by x =bt² - ct, where b = 2.0 m/s² and
C = 6.7 m/s, and x and t are in SI units. What is the instantaneous velocity of the object when t = 2.2?

• A) 1.7 m/s
• B) 2.1 m/s
• C) 2.3 m/s
• D) 2.7 m/s

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Definitions:

Market Failure

When the free market's distribution of goods and services is inefficient, it typically results in a reduction of societal welfare.

Inefficient Allocation

A situation where resources are not used in the best possible way, often leading to waste or unmet needs.

Negative Externality

An undesirable outcome of an economic activity that affects third parties who did not choose to incur that cost or benefit.

Air Pollution

The presence of substances in the atmosphere that are harmful to human health, the environment or cause climate change.