1. a student carries a 12 kg box up a flight of stairs at a slow constant speed in 4.5 seconds. the height of the flight of stairs is 3.6 meters. a. what is the weight of the box? (in other words, its force in newtons) want: given: can someone help me which this physic homework please? formula: solve: b. how much work does the student do on the box? draw a problem solving box! c. what is the student's output power? draw a problem solving box! can someone help me with this physic homework pleas?