Question Number 100629 by aurpeyz last updated on 27/Jun/20
Commented by aurpeyz last updated on 27/Jun/20
$$\mathrm{question}\:\mathrm{3}\:\mathrm{pls} \\ $$
Answered by mr W last updated on 28/Jun/20
Commented by mr W last updated on 27/Jun/20
$${B}=\mathrm{2}\:{m} \\ $$$$\theta=\mathrm{45}° \\ $$$${h}=\frac{{B}}{\mathrm{2}\:\mathrm{tan}\:\theta}=\frac{\mathrm{2}}{\mathrm{2}\:\mathrm{tan}\:\mathrm{45}°}=\mathrm{1}\:{m} \\ $$
Commented by aurpeyz last updated on 28/Jun/20
$$\mathrm{pls}\:\mathrm{explain}\:\mathrm{the}\:\mathrm{red}\:\mathrm{part}\:\mathrm{of}\:\mathrm{the}\:\mathrm{diagram}\:\mathrm{Sir}.\:\mathrm{thank}\:\mathrm{alot} \\ $$
Commented by aurpeyz last updated on 28/Jun/20
$$\mathrm{pls}\:\mathrm{explain}\:\mathrm{the}\:\mathrm{red}\:\mathrm{part}\:\mathrm{of}\:\mathrm{the}\:\mathrm{diagram}\:\mathrm{Sir}.\:\mathrm{thank}\:\mathrm{alot} \\ $$
Commented by mr W last updated on 28/Jun/20
$${i}\:{can}'{t}\:{give}\:{more}\:{explanation}\:{as} \\ $$$${the}\:{diagram}\:{already}\:{did}.\:{what}\:{do}\:{you} \\ $$$${not}\:{understand}? \\ $$
Commented by aurpeyz last updated on 28/Jun/20
$$\mathrm{thsnks}\:\mathrm{sir}.\:\mathrm{i}\:\mathrm{think}\:\mathrm{i}\:\mathrm{already}\:\mathrm{understand}.\:\mathrm{Sir}\:\mathrm{what}\:\mathrm{is}\:\mathrm{the}\:\mathrm{force}\:\mathrm{F1}\:\mathrm{and}\:\mathrm{F2}\:\mathrm{and}\:\mathrm{why}\:\mathrm{is}\:\mathrm{theta}\:\mathrm{at}\:\mathrm{the}\:\mathrm{red}\:\mathrm{diagram}\:\mathrm{also}\:\mathrm{45}?\:\mathrm{thanks}\:\mathrm{for}\:\mathrm{helping}\:\mathrm{me}\:\mathrm{to}\:\mathrm{learn}\:\mathrm{sir} \\ $$