Recent content by yoxter

Thanks I did as you said and the first figure the angle is α and in the the second the angle is o it is a little more clear to me now.

thanks. i've edited the post as you say, i can't ask to my teacher because my exam is the next class.

i know that question is a little basic but i have no one to ask. for this image i think that the angle between the horizontal and the normal force that the semi-cylinder exert on the bar is is α - 90° Original Image for this one i think that the angle between the horizontal and the...