Mathematics · Mechanics
Three like parallel forces of 30 kN, 20 kN, and 10 kN act vertically upwards at points A, B, and C respectively on a straight line. If the distances are AB = 2 m and BC = 3 m, determine the magnitude of the resultant force and its point of action from end A.
- 160 kN acting upwards at a distance of 3.0 m from A
- 260 kN acting upwards at a distance of 3.5 m from A
- 360 kN acting downwards at a distance of 2.5 m from A
- 460 kN acting upwards at a distance of 1.5 m from A✓
Correct answer
60 kN acting upwards at a distance of 1.5 m from A
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