046
(4) TE
20 The heart of a man pumps 5 litres of blood
through the arteries per minute at a pressure of
150 mm of mercury. If the density of mercury be
13.6 × 103 kg/m3 and g = 10 m/s2 then the power
of heart in watt is
[Re-AIPMT-2015]
24.
(1) 1.50
(2) 1.70
(3) 2.35
(4) 3.0 LP
15:
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Answers
Answered by
1
Given pressure =150
Pumping rate of heart of a man =
dt
dv
=
60
5×10
−3
m
3
/s
Power of heart p
dt
dv
=ρgh.
dt
dv
=
60
(13.6×10
3
kg/m
3
)(10)×0.15×5×10
−3
=1.70N
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