Question

c.2. 600N A 200N Determine the magnitude and direction of the resultant moment of all force couples Z72 Somm 100mm Good 200N

Answer 1

Moment is defined as the product of the force (F) and the moment arm (d) The moment arm is perpendicular distance between line of action of force and center of moment. The direction of moment can be find with the help of right hand rule, that is put your hand towards the direction of force and fingers of your hands curls towards the direction of rotation of force exerted. I also calculate net moment at different points which makes you easy to understand.
ase Dutt Betismine ruultant moment mag and direction all force couple 2 600N 20N c loomm boong 2ου Ν 70,000 Nom Solution: @ Resultant moment about moment about point y Mo along (= box so = 30,000 man clockwise along boo x 50 + 200x so 40,000 Nmm clockwise E M = 30,000+ 40,000 clockwish Resultant moment along point A MB along A = 6oux 100 = 60,000 Nom clockwise A = 200x 50 = 10,000 Nom EM= 70,000 Nom clockwire Me

point B Mc along along point o rod is same ie. 70,000 Unpoint © Resultant Moment along 10,000 Nm 200x50 Nmm = zlockwith Ma B = 600 x100 + 200X0 - 60,000 Noor clockwise EM = 70,000 Nmm clockwise 6oox 50+ 200x o 30,000 Nmm. clockwin 200x50 Nmm = 10,000 mm clockwise O 600 x 50 = 30,000 Nmm clockwise E M = 30,000t 10,000, + 30,000 Nmm 70,000 Nmm clockwise @ Resultant Moment along along MA Me along Me along This resultant moment at an any in clockwise direction