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    In the answer to the question no 11 c of exercise c of chapter 5 of the edexcel m1 As and a level modular mathematics book i see that after the 12 n weight was added the force on D is still 12 N. How can that be since the rod shouldn't be tilting anymore after the weight was added? Why is the rod still tilting since it's been put in equilibrium?I've highlighted the part i don't understand
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Updated: January 20, 2017
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