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If the contraction of the left ventricle lasts 250 ms and the speed of blood flow in the aorta (the large artery leaving the heart) is 0.76 m/s at the end of the contraction, what is the average acceleration of a red blood cell as it leaves the heart?

Respuesta :

vâ‚€ = initial speed of the blood = 0 [tex]\frac{m}{s}[/tex]

v = final speed of the blood = 0.76 [tex]\frac{m}{s}[/tex]

a = average acceleration of red blood cell

t = time of contraction = 250 ms = 0.250 s        since 1 ms = 0.001 s

Using the equation

v = vâ‚€ + a t

inserting the values

0.76 = 0 + a (0.250)

a = 3.04 [tex]\frac{m}{s^{2}}[/tex]

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