# How much time does the blood take to reach its final velocity?

the left ventricle of the heart accleartes blood from rest toi a velocity of +26 cm/s.
A)if the displacement of the blood during the acceleration is +20 cm, determine its accleatrion in (cm/s)
b) How much time does the blood take to reach its final velcoity?

Kindly plz provide steps by steps so i can learn better!!

Thanks

Related Introductory Physics Homework Help News on Phys.org
You are given final and initial velocities and displacement, but not time.

The equation for accelerated motion when time is unknown is
A) Vf^2 = Vi^2 + 2*a*s where Vf is final velocity and Vi is initial velocity. Solve for a.

Now that you know a, use your definition of acceleration:
B) a = (Vi + Vf) / t solve for t.

You need to know these formulas! They come up again and again in physics.

What he said, in laTex:

$$V_{final}^{2} = U_{initial}^{2} + 2as$$

Where:
V = Final Velocity
U = Initial Velocity
a = Acceleration (in ms if U and V and s are in meters.)
s = Displacement