MHB Equilibrium Problem: Fbd > Fbc?

  • Thread starter Thread starter Drain Brain
  • Start date Start date
  • Tags Tags
    Equlibrium
AI Thread Summary
The discussion centers on the relationship between forces Fbd and Fbc, with the solution indicating that Fbd is greater than Fbc. The equation provided shows that Fbd equals 1.4142 times Fbc, confirming that Fbd is indeed larger. This mathematical relationship is the basis for the conclusion drawn in the solution. The clarification emphasizes the importance of understanding force ratios in equilibrium problems. The discussion highlights a key aspect of analyzing forces in physics.
Drain Brain
Messages
143
Reaction score
0
Hello! I just want to ask why the solution says that Fbd>Fbc? How did the solver decide that was case? Thanks!
 

Attachments

  • equilibrium statics.jpg
    equilibrium statics.jpg
    61.7 KB · Views: 88
Mathematics news on Phys.org
Drain Brain said:
Hello! I just want to ask why the solution says that Fbd>Fbc? How did the solver decide that was case? Thanks!

Hi Drain Brain! :)

2 lines before, we have:
$$F_{BD} = 1.4142 F_{BC} \qquad\qquad (1)$$

So $F_{BD}$ is 1.4142 times as big as $F_{BC}$, meaning $F_{BD} > F_{BC}$.
 
Seemingly by some mathematical coincidence, a hexagon of sides 2,2,7,7, 11, and 11 can be inscribed in a circle of radius 7. The other day I saw a math problem on line, which they said came from a Polish Olympiad, where you compute the length x of the 3rd side which is the same as the radius, so that the sides of length 2,x, and 11 are inscribed on the arc of a semi-circle. The law of cosines applied twice gives the answer for x of exactly 7, but the arithmetic is so complex that the...
Is it possible to arrange six pencils such that each one touches the other five? If so, how? This is an adaption of a Martin Gardner puzzle only I changed it from cigarettes to pencils and left out the clues because PF folks don’t need clues. From the book “My Best Mathematical and Logic Puzzles”. Dover, 1994.

Similar threads

Back
Top