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Question Number 208931 by byaw last updated on 27/Jun/24

Answered by mr W last updated on 27/Jun/24

$$\left(a\right)$$$$R=m(g+a)=0.5\times (10+2)=6N$$$$$$$$\left(b\right)\left(i\right)$$$$Mg\times 0.8+100\times 0.3+80\times 1.3-90\times 2.4=0$$$$\Rightarrow M=10.25kg$$$$\left(b\right)\left(ii\right)$$$$R_B=102.5+100+80-90=192.5N$$

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