How Do You Solve Vector Addition Problems?

  • Thread starter Thread starter Bensky
  • Start date Start date
  • Tags Tags
    Vectors
AI Thread Summary
Vector addition problems can be solved using the tail-to-tip method, where the tip of one vector is placed at the tail of another. In this case, the resultant vector C is the sum of vectors A and B. The position of vector C can be adjusted to demonstrate this relationship visually. It's crucial to ensure that the tail of C starts at the tail of A and extends to the tip of B. Understanding this method is essential for accurately representing vector sums.
Bensky
Messages
82
Reaction score
0
Need MORE help with vectors by tomorrow. :(

Homework Statement


Attached in the picture. C can be moved around in all different directions and can rotate since it is supposed to be R, the other two can only be moved horizontally and vertically.
http://xs120.xs.to/xs120/07436/vectorhelp.PNG

Homework Equations



C = A + B

The Attempt at a Solution



I tried a number of different ways using the tail to tip method. It didn't show me my previous responses like the other problems, so unfortunately I can't show which ones I tried. :(
 
Last edited by a moderator:
Physics news on Phys.org
What are you trying to find? The components of C? What is the problem ?
 
qspeechc said:
What are you trying to find? The components of C? What is the problem ?

I'm trying to put A, B, and C in the correct positions to show a vector sum. C = Resultant.
 
Ah! Ok, A + B = C So, use the tail-to-tip method, that is, the tip of A must be at the tail of B, then the tail of C starts at the tail of A and goes to the tip of B. Can you see why this must be so?
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Thread 'Struggle to understand the concept of the question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »

Similar threads

Can You Solve Graphical Vector Problems Using Only Math and Integration?
Replies
2
Views
1K
Vector problem -- Find the angle between vector A and vector B
Replies
8
Views
2K
Solve velocity addition problems using 4-vector
Replies
8
Views
2K
How do you find the third vector C in vector addition problems?
Replies
2
Views
2K
Is Scalar Addition Equivalent to Adding Parallel Vectors?
Replies
3
Views
2K
How do you graph vectors on a graph paper using their magnitude and direction?
Replies
5
Views
2K
Kinematics, curvilinear motion (a couple of questions)
Replies
30
Views
2K
Vector addition and the force applied to the shaft of the pulley
Replies
4
Views
2K
How do I know that I should do a vector addition for this?
Replies
2
Views
4K
How do I solve this vector problem involving three ropes and a rough surface?
Replies
2
Views
1K

Hot Threads

Recent Insights

Back
Top