A Boat, Whose Speed in Still Water Is 1

question 11

Short Answer

A boat, whose speed in still water is 1.75 m/s, must aim upstream at an angle of 26.3° (with respect to a line perpendicular to the shore) in order to travel directly across the stream.
(a) Determine the speed of the current.
(b) Determine the resultant speed of the boat with respect to the shore.

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Definitions:

Maxillary

Pertaining to the jaw or jawbone, specifically the upper jaw represented by the maxilla bone.

Nasal Conchae

Scroll-like, bony structures located within the nasal cavity that help to increase the surface area for air filtration, humidification, and temperature control.

Ethmoid

A spongy, cuboid-shaped bone at the base of the skull, critical in the formation of the nasal cavity, orbits, and the floor of the anterior cranial fossa.

Sphenoid

A complex bone at the base of the skull that helps form the eye socket, nose, and base of the brain casing.