Four cars, with a mass of 1500 kg each, are loaded on a 6 m wide, 12 m long small car ferry. How far, in cm will it sink in the water?
- A. 15.2
- B. 11.5
- C. 10.2
- D. 8.3
Answer: D. 8.3
Explanation: Extra weight = $4 \times 1500 \times g$. Extra Buoyancy = $\rho g (Area \times h)$. $6000 = 1000 (6 \times 12) h$. $h = 6000/72000 = 1/12$ m = 8.33 cm.