A River Is 0

question 18

Multiple Choice

A river is 0.76 km wide.The banks are straight and parallel.The current is 5.0 km/h and is parallel to the banks.A boat has a maximum speed of 3 km/h in still water.The pilot of the boat wishes to travel on a straight line from A to B,where AB is perpendicular to the banks.The pilot should

• A)head directly across the river.
• B)head 68º upstream from the line AB.
• C)head 22º upstream from the line AB.
• D)give up.The trip from A to B is not possible with this boat.
• E)do none of these.

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Definitions:

Autonomy Support

The encouragement of self-initiative and independence by providing options and respecting individuals' choices.

McClelland's Theory

A motivational theory suggesting that people are driven by needs for achievement, power, and affiliation, influencing their behavior and performance.

Comparison Person

An individual used as a benchmark to evaluate one's own situation, achievements, or performance in social comparison theory.

Need for Achievement

A psychological trait that drives individuals to succeed, accomplish challenging tasks, and set high standards for themselves.