09032008, 02:53 PM  #1 
Junior Member
Join Date: Aug 2008
Location: United States
Posts: 24

Vector Addition & Subtraction problems
Hello Everyone,
I have a couple problems that I have no idea how to even start (maybe its because I have a hard time visualizing?) and would like anyone to help break it down to small steps for me so I can understand how to do them. Here are the questions. 1) A force vector F1 points due east and has a magnitude of 200 newtons. A second for F2 is added to F1. The resultant of the two vectors has a magnitude of 400 newtons and points along the east/west line. Find the magnitude and direction of F2. Note that there are two answers. 2) One displacement vector A has a magnitude of 2.43km and points due north. A second displacement vector B has a magnitude of 7.74km and also points due north. Part A)find the magnitude and direction of AB Part B)Find the magnitude and direction of BA. 3)Two displacement vectors A and B each point 35.0 degrees north of west. One has a magnitude of 4.60km, while the other has a magnitude of 3.20km. What are the magnitude and direction of the resultant vector A+B? 4) Vector A has a magnitude of 48.0 units and points due west, while Vector B has the same magnitude but points due south. Determine the magnitude and direction of A+B and AB. Specifiy the direction relative to due west. 5) Two ropes are attached to a heavy box to pull it along the floor. One rope applies a force of 475 newtons in a direction due south. How much force should be applied by a single rope and in what direction (relative to due west), if it is to accomplish the same effect as the two force added together? I thank anyone in advance for helping me 
09032008, 04:46 PM  #2  
Super Moderator
Join Date: Apr 2008
Location: On the dance floor, baby!
Posts: 1,915

Quote:
Dan
__________________
I'm a "something shiny" kind of...Oh look! Something shiny! See the forum rules here. Last edited by topsquark; 09042008 at 02:47 AM. 

09032008, 05:29 PM  #3 
Junior Member
Join Date: Aug 2008
Location: United States
Posts: 24

The link doesn't work.

09042008, 02:55 AM  #5 
Junior Member
Join Date: Aug 2008
Location: United States
Posts: 24

Thank you!
