PH-610
Moments
Physics · Secondary 3 · Medium · Moments
A uniform plank of negligible mass is supported at its ends by two scales X and Y, 1.5 m apart. A 30 N load is placed 0.6 m from support X. The system is in equilibrium. What is the upward force on support X?
- 18 N
- 12 N
- 30 N
- 45 N
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