OK, yes I take the point about swinging together, and instinctively I knew there was a compression, yet I can't seem to work out what it is acutally caused by. Please can you tell me what forces are acting horizontally and causing the compressive force?
1. Three bars each has weight W. They are pinned together at the corners to form an equilateral triangle suspended from the ceiling at point A. So points B and C (the other two vertices) lie on a horizontal line. I need to draw a diagram of each bar separately, showing all the forces acting...
Sorry, yes the angle is 45.
This is a statics question.
If the tension is equal both, and it is shown by T, is it correct, by resolving vertically to say that 2T*Cos45=P?
1. Two light rigid rods of equal length are fixed to a wall at one end and to a particle, of weight P, at the other end, as shown in attachments. The angles marked are both 40 degrees. Find the forces through the rods and state whether they are tensive or compressive.
3. I'm just...