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Question-69545




Question Number 69545 by TawaTawa last updated on 24/Sep/19
Commented by mr W last updated on 24/Sep/19
30×20−28×18=96 m^2   96×0.08=7.68 m^3   ((7.68)/1)=7.68 ⇒ 8  bags  8×600=4800 N  4800+2000=6800 N  ((6800)/(96))=70.83 N/m^2  ≈ 70 N/m^2  ⇒correct
$$\mathrm{30}×\mathrm{20}−\mathrm{28}×\mathrm{18}=\mathrm{96}\:{m}^{\mathrm{2}} \\ $$$$\mathrm{96}×\mathrm{0}.\mathrm{08}=\mathrm{7}.\mathrm{68}\:{m}^{\mathrm{3}} \\ $$$$\frac{\mathrm{7}.\mathrm{68}}{\mathrm{1}}=\mathrm{7}.\mathrm{68}\:\Rightarrow\:\mathrm{8}\:\:{bags} \\ $$$$\mathrm{8}×\mathrm{600}=\mathrm{4800}\:{N} \\ $$$$\mathrm{4800}+\mathrm{2000}=\mathrm{6800}\:{N} \\ $$$$\frac{\mathrm{6800}}{\mathrm{96}}=\mathrm{70}.\mathrm{83}\:{N}/{m}^{\mathrm{2}} \:\approx\:\mathrm{70}\:{N}/{m}^{\mathrm{2}} \:\Rightarrow{correct} \\ $$
Commented by TawaTawa last updated on 24/Sep/19
Wow, God bless you sir
$$\mathrm{Wow},\:\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir} \\ $$

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