Use the Figure to Answer the Question

question 65

Multiple Choice

Use the figure to answer the question. The graph shows the speed of a light truck of mass 4000 kg coasting on neutral down a level straight road. The truck is slowing down due to air resistance and rolling friction.
-Estimate the work done per second by the retarding force at t = 5s.

• A) 20 kJ
• B) 40 kJ
• C) 60 kJ
• D) 80 kJ
• E) 100 kJ

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Definitions:

Median

The middle value in a sorted list of numbers, effectively dividing the dataset into two halves.

Regression Toward

A statistical phenomenon that describes how extreme scores on a variable tend to be closer to the average on subsequent measurements.

Emotional Distress

A negative emotional state that may arise from various causes, including stress, anxiety, or traumatic events.

Mode

The most common number found in a set of data.