Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • heart pumps 5l of blood in one minute at a pressure of150mm of hg find power

heart pumps 5l of blood in one minute at a pressure of150mm of hg find power

Answers (1)

best_answer

Given pressure is 150mm of hg
And 
Pumping rate of heart of man
\Rightarrow \frac{dv}{dt} = \frac{5\times 10^{-3}}{60} \ m^3/s
Now,
Power of heart  = P. \frac{dv}{dt} = \rho gh.\frac{dv}{dt} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ (\because P = \rho gh)
\Rightarrow \frac{(13.6\times 10^3 kg/m^3)(10)(0.15)(5\times 10^{-3})}{60}= 1.70 W
Therefore, power required is 1.70W
 

Posted by

Gautam harsolia

View full answer

Similar Questions

Latest Question