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Grade: 9
        
The heart is pumping blood at x kg per unit time, with constant velocity v. The force needed
 
one year ago

Answers : (2)

Sanju
106 Points
							
Force = Rate of change of momentum 
F = mv/t = (m/t)v = xv      [Note: m/t is x, which is given in the question]
So the required force is xv
one year ago
elon musk
13 Points
							
newtons first law states that “ if a body is at constant velocity the net FORCE is zero”. so if the heart pumps at constant velocity the force must be equal to zero.
one month ago
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