A2-kg objects is moving horizontally with a speed of 4 m./s. how much net force is required to keep the object moving with the same speed and in the same directions

Look at Newton's Second Law of Motion.  F = m A

No, I mean REALLY LOOK AT IT.

The FORCE you need to give something an acceleration of A is          (MASS) x (A).

If your object is moving with a steady speed in a straight line, then it has no acceleration.  A = Zero.

The force it takes to keep it moving that way is (mass) x (zero) = Zero .

An object that's moving in a straight line at a steady speed doesn't need ANY force to keep going.

Force does not CAUSE constant uniform motion. Force CHANGES motion.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.