Two red blood cells each have a mass

of$9\mathrm{.}05\backslash$times $10^-14$kg$$and carry a negative charge spread

uniformly over their surfaces. The repulsion arising from the

excess charge prevents the cells from clumping together. One cell

carries$3\mathrm{.}00$pC$$and the

other$2\mathrm{.}60$pC$,$and each cell can be modeled as a

sphere$3\mathrm{.}75\backslash$times $10^-6$m$$in radius. If the red blood

cells start very far apart and move directly toward each other with

the same speed, what initial speed would each need so that they get

close enough to just barely touch? Assume that there is no viscous

drag from any of the surrounding$$liquid$.$initial speed: m$/$s

What is the maximum acceleration of the cells as they move 

 

toward each other and just barely$$touch$?$maximum acceleration: m$/$s$^2$