Use the Figure for the Question

question 23

Multiple Choice

Use the figure for 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.
-Suppose the driver decides to put the truck in gear and steps on the accelerator at 5s.What is the power needed to maintain the speed at 5s?

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

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Definitions:

Evolutionary Theory

A scientific theory that explains the diversity of life through the process of natural selection, where organisms that are better suited to their environment survive and reproduce.

Color Vision

The ability of the eyes to distinguish different wavelengths of light, enabling us to see a spectrum of colors.

Christine Ladd-Franklin

An American psychologist and logician known for her work in psychology of vision and color theory, as well as being one of the first women to make significant contributions to the field of psychology.

Unconscious Mind

Part of the mind that is inaccessible to the conscious mind but that affects behavior and emotions.