A steel ladder is supporting two objects. A mass of a man m 80 kg and mass of his bucata 10 kg. The distances are di = 3

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A Steel Ladder Is Supporting Two Objects A Mass Of A Man M 80 Kg And Mass Of His Bucata 10 Kg The Distances Are Di 3 1 (953.66 KiB) Viewed 64 times

A steel ladder is supporting two objects. A mass of a man m 80 kg and mass of his bucata 10 kg. The distances are di = 3 m dy = 4 m. and L=12 m. The angle between the wall and the ladder is = 45°. Assume that we have a negligible friction at "A" (at the wall). but the friction is not negligible on the ground at "B". (a) (2 marks) Draw the free body diagram of the beam that shows all forces acting at A and B. (b) (4 marks) Determine the normal forces at "A" and "B", and the friction force at "B". Assume that the steal beam has a negligible mass. Use g = 9.8 m/s for gravitational acceleration.