How can I draw scaled vector diagrams for given vectors?

  • Thread starter Thread starter allielove13
  • Start date Start date
  • Tags Tags
    Diagrams Vector
Click For Summary
To draw scaled vector diagrams, start by plotting the first vector at the specified angle and length. For subsequent vectors, measure the angles from the endpoint of the previous vector. When drawing angles greater than 180 degrees, remember to measure counter-clockwise from the last point. This method ensures accurate representation of the vectors' directions and magnitudes. Following these steps will help in successfully creating the vector diagram.
allielove13
Messages
3
Reaction score
0
I'm confused about how to draw scaled vector diagrams. I have a scale and I can do the first two vectors, but then I get confused.
Let's say my vectors are 10 cm at 0 degrees, 5 cm at 45 degrees, and 11 cm at 212 degrees.
How do I draw this? I have this:
122k8b8.jpg
 
Physics news on Phys.org
Ok, you see at the point where you began to draw the 10? Measure all the angles from that point. Draw the 45 from there and draw the 5 cm.

For the 212, remember that when measuring the angles we measure counter-clockwise, so measure 212 degrees counter clockwise from that point. Are you able to do this one?
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

Similar threads

  • · Replies 10 ·
Replies
10
Views
2K
Replies
26
Views
2K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 17 ·
Replies
17
Views
1K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K
Replies
4
Views
1K
  • · Replies 25 ·
Replies
25
Views
1K
Replies
35
Views
2K
Replies
5
Views
2K