A River 100 Mile Wide Flows with a Constant Speed of 1

question 24

Multiple Choice

A river 1.00 mile wide flows with a constant speed of 1.00 mi/h.A man can row a boat at 2.00 mi/h.He crosses the river in a direction that puts him directly across the river from the starting point,and then he returns in a direction that puts him back at the starting point in the shortest time possible.The travel time for the man is

• A)2.00 h.
• B)1.15 h.
• C)1.00 h.
• D)1.33 h.
• E)0.67 h.

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Definitions:

Saturation Effect

A phenomenon whereby a system's performance levels off or declines after reaching a certain point, despite continued increases in input or effort.

Birds-of-a-Feather Effect

The phenomenon that people tend to form relationships and bond with others who have similar characteristics, such as interests and values.

Foot-in-the-Door Effect

A psychological phenomenon where agreeing to a small request increases the likelihood of agreeing to a larger request later.

Proximity

In psychology, the closeness or physical distance between people that significantly affects attraction and relationship formation; in visual perception, a principle that elements close to one another are perceived as a coherent group.