A Boat, Whose Speed in Still Water Is 1

question 73

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) What is the speed of the current?
(b) What is the resultant speed of the boat with respect to the shore?

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Definitions:

Lymphocytes

A subtype of white blood cells that are part of the immune system, playing a significant role in the body's defenses against disease.

Macrophages

Large white blood cells in the immune system that engulf and digest pathogens and dead cells, part of the body's defense mechanism.

Pathogens

Microorganisms that can cause disease in another organism, including bacteria, viruses, fungi, and parasites.

Afferent Lymphatic Vessel

Vessels that carry lymph fluid towards lymph nodes, allowing for the filtration of harmful substances from the body.