Member AB of the frame show has two forces acting on it Find
Member AB of the frame show has two forces acting on it. Find the resultant force
Solution
Two forces are applied on AB
250N is applied at an angle of 70 degrees to the horizontal ( -ve direction)
1500N is applied at an angle of 20 degrees to the horizontal ( +ve direction)
Lets calculate forces along X axis and Y axis:
Fx = -250cos70 + 1500cos15 = 1363.38 Nt
Fy = 250sin70 + 1500sin15 = 623.15 Nt
Resultant force F = sqrt( Fx^2 +Fy^2) = sqrt( 1363.38^2 + 623.15^2)
= 1499.04 Nt along AB
