   Chapter 2, Problem 66AP

Chapter
Section
Textbook Problem

The thickest and strongest chamber in the human heart is the left ventricle, responsible during systole for pumping oxygenated blood through the aorta to rest of the body. Assume aortic blood starts from rest and accelerates at 22.5 m/s2 to a peak speed of 1.05 m/s. (a) How far does the blood travel during this acceleration? (b) How much time is required for the blood to reach its peak speed?

(a)

To determine
The travelled by blood during the acceleration.

Explanation

Given Info: The initial velocity of the blood is 0 , the final velocity of the blood is 1.05m/s , and the acceleration of the blood is 22.5m/s2

Explanation:

The formula used to calculate the displacement of the blood is,

Δx=v2v022a

Here,

Δx is the displacement of the blood

v is the final velocity of the blood

v0 is the initial velocity of the blood

a is the acceleration of the blood

Substitute 0 for v0 , 1.05m/s for v and 22.5m/s2 for a to find Δx .

Δx=(1

(b)

To determine
The time required for the blood to reach the peak speed.

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