The left ventricle of the heart accelerates blood from rest to a velocity of + 29.8 cm/s. (a) If the displacement of the blood during the acceleration is + 2.68 cm, determine its acceleration (in cm/s2). (b) How much time does blood take to reach its final velocity?
v = at
29.8 = at
a = 29.8/t
s = 1/2 at^2
2.68 = 1/2 at^2
2.68 = 1/2 (29.8/t)t^2
t = 0.18s
a = 29.8/0.18 = 166.5cm/s^2