ICSE Class 10 Physics 2018 Solved Paper

Question : 42

Total: 78

The direction of 20‌kgf force is reversed. What is the magnitude of the resultant moment of the forces on the rod?

Solution:

On reversing the direction of 20‌gf force, it now provides clockwise moment.
Thus the resultant moment of the forces on the rod
‌=120‌gf−cm+120‌gf−cm
‌=240‌gf−cm‌ (clockwise) ‌

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