The left ventricle of the heart accelerates blood from rest to a velocity of +22 cm/s.
(a) If the displacement of the blood during the acceleration is +2.1 cm, determine its acceleration (in cm/s2).
should be in cm/s2
(b) How much time does it take for the blood to reach its final velocity?
in seconds?
thankyou for looking at this.
The acceleration is constant.
Given:
Vo = 0
V final, Vf = 22 cm/sec
distance travelled, d = 2.1 cm
d = [(Vo +Vf)/2]*t
2.1 = [(0 +22)/2]*t
2.1 =11t
t = 2.1/11 = 0.191 sec -------------answer.
Vf = Vo +at
22 = 0 +a(0.191)
a = 22/0.191 = 115.2 cm/sdec/sec -------------answer.