As a learner of Physics, how far should the bags of cement be, before the boat balances horizontally on water? How does the boat move? How deep does the boat sink? Comment on safety of the boat, in relation to the departure time.

Wingi wa opereta ($M_{op}$) = 80 kg
Umbali wa opereta kutoka katikati ($d_{op}$) = 30 cm = 0.3 m
Jumla ya wingi wa saruji ($M_{cement}$) = 100 mifuko $\times$ 50 kg/mfuko = 5000 kg
Acha $d_{cement}$ iwe umbali wa mifuko ya saruji kutoka katikati.

Moment ya opereta = Moment ya saruji

Mifuko ya saruji inapaswa kuwekwa umbali wa 0.0048 m (au 0.48 cm) kutoka katikati ya boti.

Wingi wa boti ni mdogo sana (negligible).
Jumla ya wingi ($M_{total}$) = Wingi wa opereta + Wingi wa saruji

Tumia $g = 10 \text{ m/s}^2$.
Uzito wa jumla ($W_{total}$) = $M_{total} \times g$

Nguvu ya kuelea ($F_B$) = Uzito wa jumla ($W_{total}$)
Pia, $F_B = \rho_{water} \times V_{displaced} \times g$
Ambapo $\rho_{water} = 1000 \text{ kg/m}^3$ (msongamano wa maji) na $V_{displaced}$ ni ujazo wa maji yaliyohamishwa.

Ujazo wa maji yaliyohamishwa ($V_{displaced}$) = Eneo la sehemu-mtambuka ($A$) $\times$ kina ($h$)
Eneo la sehemu-mtambuka ($A$) = $200 \text{ m}^2$.

Boti inazama kwa kina cha 0.0254 m (au 2.54 cm).