Homework Help Forum: science

Posted by please help(: on Wednesday, November 4, 2009 at 1:50pm.

Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters 12000J 2. pulling a television weighing 400 newtons down a hallway of 35 meters 14000J 3. pushing a stalled truck weighing 7,500 newtons a distance of 0.4 meters 3000J 4. carrying several textbooks weighing 130 newtons, over the course of a semester, for 5,000 meters 650000J i am quite confused... would it be 4,2,1,3 or is that wrong? and why?

• science - bobpursley, Wednesday, November 4, 2009 at 1:57pm

  None of these do work. Is the weight in the direction of the movement? Ans: No all are wrong.

  
  

• science - please help(:, Wednesday, November 4, 2009 at 2:00pm

  i did all those calculations...so are the calculations wrong or is there just no order period cause none do work?

  
  

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