By what distance do two objects carrying 1.0 c of charge each have to be separated before the electric force exerted on each object is 5.5 n

Distance between both the object will be 404.51 m

Explanation:  

We have given charge on two objects

Coulomb force between the two objects is given F = 5.5 N

We have to fond the distance between both the object so that force between them is 5.5 N

According to coulomb law force between two charge particle is

So

r = 404.51 m

So distance between both object will be 404.51 m

truck y has a greater velocity than truck x.