Acceleration of blood pumped by heart

AI Thread Summary
The discussion revolves around calculating the acceleration of blood pumped by the heart's left ventricle, which accelerates blood to a velocity of +23.9 cm/s over a displacement of +1.80 cm. The user is attempting to apply the kinematic equation v² = v₀² + 2ax but is struggling to find the correct answer. Other participants encourage the user to share their calculations for further assistance. The conversation highlights the importance of using the correct formulas and checking work for potential errors. Overall, the thread emphasizes problem-solving in physics related to heart function.
melinaamos
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Hey,
I"m having a few problems with some motion problems and was wondering if someone could help?

The left ventricle of the heart accelerated blood from rest to a velocity of +23.9 cm s-1. If the displacement of the blood during the acceleration is +1.80 cm, determine its acceleration (in cm s-2).
 
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Welcome to PF!

Hi melinaamos ! Welcome to PF! :smile:

vi = 0, vf = 23.9, x = 1.8.

(btw, you should have used the standard form for homework questions)

Hint: what equations do you know relating vi, vf, x and t? :smile:
 
Hey,

i'm using v2= vo2 + 2ax but still getting the answer wrong
 
melinaamos said:
Hey,

i'm using v2= vo2 + 2ax but still getting the answer wrong

Hi melinaamos! :smile:

Well, that's the right formula.

Show us your working, so we can check it.

(Sometimes the book is wrong! :rolleyes: )
 
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