Question Number 140143 by I want to learn more last updated on 04/May/21
Commented by mr W last updated on 04/May/21
$$\left({a}\right) \\ $$$${F}_{{W}} =\mathrm{12}×\mathrm{tan}\:\mathrm{30}°\approx\mathrm{6}.\mathrm{9}\:{N} \\ $$$$\left({b}\right) \\ $$$$\mu=\frac{\mathrm{12}}{\mathrm{40}}=\mathrm{0}.\mathrm{3} \\ $$
Commented by I want to learn more last updated on 04/May/21
$$\mathrm{I}\:\mathrm{really}\:\mathrm{appreciate}\:\mathrm{sir}.\:\mathrm{God}\:\mathrm{bless}\:\mathrm{you} \\ $$