Explanation:
Initial speed of blood, u = 0
Final speed of the blood, v = 26 cm/s
(a) Displacement of the blood, d = 2 cm
Let a be its acceleration. It can be calculated using third equation of motion as :
[tex]a=\dfrac{v^2-u^2}{2s}[/tex]
[tex]a=\dfrac{(26)^2}{2\times 2}[/tex]
[tex]a=169\ cm/s^2[/tex]
(b) Let t is the time taken by the blood to reach its final speed. It can be calculated as :
[tex]t=\dfrac{v-u}{a}[/tex]
[tex]t=\dfrac{26\ cm/s}{169\ cm/s^2}[/tex]
t = 0.15 s
Hence, this is the required solution.
