S-Cool | Resolving Vectors into Components
OP wants help w/ the last question.
Hi, I need help with resolving components of vector forces.
For example how would you solve the last question mentioned on this website
I've read the procedure on the above page but still confused on how to solve such questions.Code:http://www.s-cool.co.uk/alevel/physics/vectors-and-scalars-and-linear-motion/resolving-vectors-into-components.html
Besides the above question I'm having difficulty with the following:
Firstly I can't figure out how to draw the components.
Secondly, once I have drawn the components I can't figure out which component/force should be Fsintheta and which one should be Fcostheta.
Please provide details on how to do the above.
Thanks!
S-Cool | Resolving Vectors into Components
OP wants help w/ the last question.
That's how did it and got the answer right just wanted to make sure because I got confused with "skeeter's" last post, where I thought he may have made a mistake with the X and Y components. I guess you think same as well. The answer came same either ways because the angle value is same for cos and sin
Besides the above question I'm having difficulty with the following:
Firstly I can't figure out how to draw the components.
Secondly, once I have drawn the components I can't figure out which component/force should be Fsintheta and which one should be Fcostheta.
Please provide details on how to do the above.
Thanks.
Vector Resolution
Try reading that . It might help .
Or see the diagram i attached . Sorry for the unclear image though .
You will see a triangle with F being the hypothenus , Fx and Fy are respectively 2 sides of the triangle .
So if you want resolve horizontally, Fx , you need a trigonometric ratio to relate Fx and F . So in this case , you will use
cos theta = Fx / F
so Fx = F cos theta .
Same goes to resolving vertically , find a trigonometric ratio which would relate Fy and F .
So would it be sin ?