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Find all the normal reaction N(AG),N(BG)...


Find all the normal reaction `N_(AG)`,`N_(BG)`,`N(AB)` and the acceleration of A and B (All surfaces are friction less):

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(a) `N_(AG=100N`,`a_A=2(m)/(s^2)`
(b) `N_(BG)=50N`,`N_(BG)=150N`,`a_a=a_B=0`
(c ) `N_(AG)=100N`,`N_(BG)=50N`,`N_(AB)=20N`,`a_A=a_B=2`
(d) `N_(BG)=50N`,`N_(AG)=150N`,`a_A=2`,`a_B=0`
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