You are at work with a friend and you need to move lots of 2 kg boxes 10 meters away from their original location. You both have different ideas about how to do this in the most efficient way. You would like to push the boxes directly along the floor with a constant force of 5 N to move them 10 meters. Your friend wants to pick each box up (a vertical distance of 1 meter), then carry the box across the 10 meters before dropping them back to the floor 10 meters away. Who's method requires you (the workers) to do less work on a 2kg box? Do not include the work done by gravity in these calculations.