Recent content by efn

The drawing i provided now are the original exercise drawings. The one in the first post is the free-body diagram solution for that exercise. Yes, i still wondering why sine is used for x component. But i am still struggling to understand this. B_angle is the Heading of N from its right side...

So, far this is what i get from original drawings. Next thing revert this into positive directions?

So, i tried to draw it this way. Alternative we could put the sine line at the end and get positve direction. Hopefully this is the right way of thinking.

Hey, i understand it this way. The circular direction is in x direction: a_rad. β is the angle. If you say direction is measured from due east counterclockwise of the vector N. Still not sure how to position the bead.

Homework Statement Understanding the free-body diagram of a bead on a circular hoop. I am calculating all forces on with x and y direction and a little confused. Why is sin*angle_x and cos*angle_y reverted in this? Usually i go sin with y and x with cos. Why is the force n=mg/(cos*beta) and...