Asuv is towing a trailer and accelerating on a level road. the force that the suv exerts on the trailer is equal to the force the trailer exerts on the suv. greater than the force the trailer exerts on the suv. equal to the force the trailer exerts on the road. equal to the force the road exerts on the trailer.

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.

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.