Understanding Vectors: Parallelogram PQRS Question

AI Thread Summary
The discussion centers on understanding vectors, specifically in the context of a parallelogram PQRS. The user struggles with the concepts despite reviewing class materials and educational videos. They pose a question about expressing the vector SR in terms of vectors q (PQ) and s (PS), while also seeking additional resources for learning about vectors. There is a request for links to helpful videos or materials, as the recommended textbook lacks sufficient information on the topic. The conversation highlights the challenges faced by beginners in grasping vector concepts.
recoil33
Messages
28
Reaction score
0
Hey,

I'll state first that I've obviously just been introduced to vectors and I have looked through the given material in class let alone watched "Khan Academy" and "Patrick JMT" video on Vectors but i can not really grasp the concepts.

Question:

In parallelogram PQRS let
q = PQ and
s = PS


Let U be the midpoint of SR. Extend side SR to a point T such that the length of ST is 6 times the length of SR. Write the following in terms of the vectors q and s.

When entering q and s, they won't be displayed in bold (but don't worry about that).

Q1.

SR

There are a lot more questions, just i'll see if i can get them eventually

Could someone possibly link me a video or anything on vectors?
I've tried to find some, although even the textbook reccommended doesn't even include vectors?

Thanks for the help in advance!
 
Physics news on Phys.org
Edit: I Just saw that you said you seen that video I just posted.
 

Thread 'Finding the number of ways to arrange identical balls in a circle (3 different colors)'

I tried to combine those 2 formulas but it didn't work. I tried using another case where there are 2 red balls and 2 blue balls only so when combining the formula I got ##\frac{(4-1)!}{2!2!}=\frac{3}{2}## which does not make sense. Is there any formula to calculate cyclic permutation of identical objects or I have to do it by listing all the possibilities? Thanks
View full post »

Thread 'Greatest possible value of a constant in polynomial'

Since ##px^9+q## is the factor, then ##x^9=\frac{-q}{p}## will be one of the roots. Let ##f(x)=27x^{18}+bx^9+70##, then: $$27\left(\frac{-q}{p}\right)^2+b\left(\frac{-q}{p}\right)+70=0$$ $$b=27 \frac{q}{p}+70 \frac{p}{q}$$ $$b=\frac{27q^2+70p^2}{pq}$$ From this expression, it looks like there is no greatest value of ##b## because increasing the value of ##p## and ##q## will also increase the value of ##b##. How to find the greatest value of ##b##? Thanks
View full post »

Similar threads

Vector Geometry: Proving Quadrilateral PQRS is a Parallelogram
Replies
1
Views
3K
Finding the Magnitude of Cross Product Vector Question
Replies
3
Views
4K
How can I solve two challenging GRE math problems without a calculator?
Replies
6
Views
3K
Using an Argand diagram, find the solution satisfying these pairs of equations
Replies
10
Views
5K
Stokes' Theorem Example Question
Replies
6
Views
2K
Vector proof of generalized parallelogram law for quadrilaterals
Replies
6
Views
11K
Finding the final speed of a Positive and Negative Charge
Replies
5
Views
2K
Questions about vectors and derivatives.
Replies
1
Views
2K
How to Solve a Vector Proof Question: Proving Z Divides RY in a 3:1 Ratio
Replies
3
Views
3K
Relations of an affine space with R^n , and the construction of Euclidean space
Replies
10
Views
4K

Hot Threads

Recent Insights

Back
Top