Answer:
equal to the force the trailer exerts on the road. 
Explanation:
Because of the tension of the rope, the force that the SUV exerts on the trailer is equal and opposite to the force that the trailer exerts on the SUV. This is explained in Newton's third law of motion, which states that for every action, there is always an equal and opposite reaction.
 
        
             
        
        
        
The question is missing, however, I guess the problem is asking for the value of the force acting between the two balls.
The Coulomb force between the two balls is:

where 

 is the Coulomb's constant, 

 is the intensity of the two charges, and 

 is the distance between them.
Substituting these numbers into the equation, we get

The force is repulsive, because the charges have same sign and so they repel each other.
 
        
        
        
Acceleration = 14/4 = ....
        
             
        
        
        
Answer:
what is the question?
Explanation:
I'm not sure if this was a question because you gave the answer lol
 
        
             
        
        
        
I think the answer is Fossils formed gradually over time.