Hi i am revising, exams in 2 week and i got stuck on this question
A light inextensible string hsa its e4nds attached to 2 fixed points A and B.... With A vertically above B, smooth ring, R of mass 0.8Kg is treaded on the string and is pulled by a horizontal force of magnitude x newton...The ring rests in equilibrium...
Find tension in the string <<< What am i suppsed to find, what tension exactly ?
Value of X
I can work the triangles
by vectors, or trigonometry, i just dont know what to look for ?