The discussion revolves around analyzing the forces acting on a hinge connected to a bar that is 3.4 meters long and has a mass of 100 kg. Participants are attempting to determine the magnitude of the hinge force while considering the tension in a supporting wire and the weight of the bar.
There is an ongoing exploration of the relationships between the forces acting on the bar, with participants providing insights into the components of the hinge force. Some participants express confusion and seek clarification on specific calculations, while others suggest methods for breaking down the forces into components.
Participants mention the need to consider equilibrium equations and moments, indicating that the problem may involve multiple interpretations of the forces at play. There is also a reference to discrepancies between calculated tension values and those provided in a textbook, which raises questions about the assumptions made in the calculations.
Looks like you took a short cut (not a good idea) to correctly solve for T, the cable tension force. But the problem wants the hinge force; try Newton 1 to solve for the x and y components of the force at the hinge.drkidd22 said:
drkidd22 said:
drkidd22 said:
If cos B =0.51, then sin B =?drkidd22 said:
drkidd22 said:
PhanthomJay said:
Yes, that is correct. So if Fhx = T sinB, as you correctly noted, then Fhx =? Now you still need to calculate Fhy.drkidd22 said:
PhanthomJay said:
Yes, in which direction? And Fhy =??, and in which direction?? Once you get both components of the hinge force, the magnitude of the resultant hinge force is what the problem is asking.drkidd22 said:
Except for some round off/sig figure errors, why do you think the tension is wrong? Your initial calculation for it is correct, although I question how you arrived at that formula.drkidd22 said:
PhanthomJay said:
Don't believe everything you read, your answer is correct. But you should be summing moments and forces = 0 to calculate these values, do not blindly use formulas.drkidd22 said:
