Acceleration of blood pumped by heart

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Homework Help Overview

The discussion revolves around a physics problem related to the acceleration of blood pumped by the heart, specifically focusing on the left ventricle's acceleration of blood from rest to a given velocity over a certain displacement.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants discuss the use of kinematic equations to determine acceleration, with one participant mentioning the specific equation v² = v₀² + 2ax. There are inquiries about the correct application of this formula and the need to show working for verification.

Discussion Status

The discussion is ongoing, with participants exploring the application of relevant equations. There is an invitation for the original poster to share their calculations for further assistance, indicating a collaborative effort to clarify the problem.

Contextual Notes

One participant notes that the original poster should use the standard form for homework questions, suggesting there may be specific formatting or presentation expectations in the forum.

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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