Question
Thanks
Calculate the moment about point A (center of post) when: W= 1000 lb & Q= 0 W = 1000 lb & Q = 400 lb Compute the moment of force F about point B using the following procedures: Determine the moment arm (d) and evaluate M=Fd Resolve force F into x and y components at point A and Calculate the moment Calculate the moment with F positioned at point C Calculate the moment with F positioned at D Use a vector approach (determinant) to find the moment Calculate the roller reaction at point B by taking a moment about point C Assume a weightless beam and a pin support at point C
Explanation / Answer
problem:-1
a-3000 lb-m
b-2200 lb-m
problem:-2
a-11.04 in and 276.15 lb-in
b-276.15
c-276.15
d-276.15
moment = rxf=12(length of lever arm*force component perpendicular to it)
so moment = 12*25cos(23)=276.15
prob:3-
a-9.6r+12-12+3.6=0
so r=-0.375