A human heart pumps $$60$$ cc of blood through the arteries at each beat against an average pressure $$10$$ cm of mercury. If the pulse beats $$72$$ times in a minute, the pumping power of heart will be $$nearly(Density$$ of mercury $$=$$ $$13.6$$ $$gm/cc$$, g $$=$$ $$10cm/s2)$$

Question

A human heart pumps $$60$$ cc of blood through the arteries at each beat against an average pressure $$10$$ cm of mercury.   If the pulse beats $$72$$ times in a minute, the pumping power of heart will be $$nearly(Density$$ of mercury  $$=$$   $$13.6$$ $$gm/cc$$,     g   $$=$$   $$10cm/s2)$$

Infinity Learn · Accepted Answer

Power    $$=$$    Worktime   $$=$$    Pressure⋅Volumet   $$=$$    hdg⋅Vtgiven height $$h=10cm=0.1m$$; density of mercury $$d=13.6x103kg/m3$$;acceleration due to gravity $$g=10m/s2$$;volume $$v=60x10-6m3time$$ for $$1$$ heart $$beat=6072Power=0.1$$×$$13.6$$×$$103$$×$$10$$×$$60$$×$$10$$−$$66072Power=0.9792$$  ≃  $$1$$ Watt

A human heart pumps 60 cc of blood through the arteries at each beat against an average pressure 10 cm of mercury. If the pulse beats 72 times in a minute, the pumping power of heart will be nearly(Density of mercury = 13.6 gm/cc, $g = 10 c m / s^{2}$ )

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A human heart pumps 60 cc of blood through the arteries at each beat against an average pressure 10 cm of mercury. If the pulse beats 72 times in a minute, the pumping power of heart will be nearly(Density of mercury = 13.6 gm/cc, g = 10cm/s2)

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A human heart pumps 60 cc of blood through the arteries at each beat against an average pressure 10 cm of mercury. If the pulse beats 72 times in a minute, the pumping power of heart will be nearly(Density of mercury = 13.6 gm/cc, $g = 10 c m / s^{2}$ )