A Car Originally at Rest Has Its Speed Increased to a Value

question 59

Multiple Choice

A car originally at rest has its speed increased to a value v in a period of 5 seconds. The work performed in this part of the motion is W₁. Over the next 5 seconds the speed of the car is increased to 2v. In the second part of the motion the work performed is W₂. It is correct to say that:

• A) W₁ = W₂.
• B) W₁ = W₂.
• C) W₁ = 2W₂.
• D) W₁ = 3W₂.
• E) W₁ = 4W₂.

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Definitions:

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A relationship between two or more variables, where changes in one variable correspond with changes in another, without implying causation.

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A concept in sociology that examines social relations through the lens of exchange theory, focusing on power dynamics and reciprocity.