Use the Scenario Below for the Next Question $\times$ 10⁵ J
B) -5

question 14

Multiple Choice

Use the scenario below for the next question.
You were traveling north at speed vc in your car of mass m_c = 2000 kg through an intersection when you were struck by a light truck of mass m_t = 4000 kg traveling West. After the collision the two vehicles are stuck together and travel a distance of 20 m in the direction 30° N of W.
-If your speed is 72 km/h,what is the work done by friction in bringing the two vehicles to rest after the collision?

• A) -4.0 \(\times\) 10⁵ J
• B) -5.3 \(\times\) 10⁵ J
• C) - 8.0 \(\times\) 10⁵ J
• D) -1.3 \(\times\) 10⁶ J
• E) -1.6 \(\times\) 10⁶ J

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Definitions:

Factor Analysis

Factor analysis is a statistical method used to identify underlying variables, or factors, that explain the pattern of correlations within a set of observed variables.

Intercorrelations

Statistical relationships or associations between two or more variables.

Psychometric

Relating to the science of measuring mental capacities and processes.

Stereotype Threat

The risk of confirming negative stereotypes about one's social group, which can impair performance.