the speed of blood in a major artery of radius 0.35 cm is 0.0 4 metre per second the arteries divided into 50 capillaries each of radius 0.1 CM calculate the speed of blood through a capillary?
This is a question of physics.
Answers
Answer:
the speed of blood in arteries is 0.04 metre per second that is blood travels 0.04 metre in one second.
the arteries are cylindrical in shape therefore 0.04 metre can be considered as the height.
0.04 metre = 4 cm
volume of 1 artery = π r^2 h
= 22/7 x 0.35 x 0.35 x 4
= 154 cm^3
the arteries is divided into 50 capillaries therefore 154cm^3 is divided into 50
therefore volume of 1 capillary = 154/50
=3.08 cm^3
volume of 1 capillary = π r^2 h
3.08 = 22/7 x 0.1 x 0.1 x h
3.08x7x100/22 = h
h= 98 cm
98 cm = 0.98m
that is blood travels 0.98 m in one second.
therefore speed of blood in one capillary = 0.98 metre per second.
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