A Boy Wishes to Cross a River in the Shortest $\theta$

question 53

Multiple Choice

A boy wishes to cross a river in the shortest possible time, without necessarily landing directly across from his starting point.He can row at 2 m/s in still water and the river is flowing at 1 m/s.At what angle $\theta$ should he point the bow (front) of his boat?

• A)30 \(\degree\)
• B)45 \(\degree\)
• C)60 \(\degree\)
• D)63 \(\degree\)
• E)90 \(\degree\)

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Definitions:

Retinohypothalamic Tract

The retinohypothalamic tract is a pathway in the brain through which photic information travels from the retina to the hypothalamus, involved in the regulation of circadian rhythms.

Lateral Geniculate Nucleus

A vital relay center in the thalamus for the visual pathway, processing signals from the retina to the visual cortex.

Ipsilateral Eye

The eye on the same side of the body as another specified point of reference, often used in the context of neurological functions or diseases.

Contralateral Eye

Refers to the eye on the opposite side of the body relative to a specific point of reference or stimulus.