Relative to its initial, healthy state, by what factor does the velocity of blood increase as the blood passes through this blockage?

Express your answer numerically.

Imagine a healthy artery, with blood flow velocity of v$0=0\mathrm{.}14$m$/$sv$0=0\mathrm{.}14$m$/$s and mass per unit volume of $=1050$kg$/$m$3$$=1050$kg$/$m$3.$ The kinetic energy per unit volume of blood is given by

K$0=12$v$20.$K$0=12$v$02.$

Imagine that plaque has narrowed an artery to one$-$fifth of its normal cross$-$sectional area $($an $80\%$ blockage$).$

Part A

Compared to normal blood flow velocity, v$0$v$0,$ what is the velocity of blood as it passes through this blockage?

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