What Is the Work Done by a Car's Braking System

question 53

Multiple Choice

What is the work done by a car's braking system when it slows the 1500-kg car from an initial speed of 96 km/h down to 56 km/h in a distance of 55 m?

• A)8.3 kJ
• B)20 kJ
• C)1.3 MJ
• D)2.5 MJ
• E)8.3 MJ

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Definitions:

Business Cycle

The fluctuations in economic activity that an economy experiences over a period of time, typically involving phases of expansion and contraction.

Unemployment Insurance

A government-provided financial assistance program for individuals who have lost their jobs, offering temporary income support while they seek new employment.

Unemployed

Individuals who are without a job but are actively looking for work and available to start work.

Endogenous

Originating from within a system, referring to factors or variables in economic models that are determined by the dynamics within the model itself, as opposed to external influences.