Question
Question: A wooden cube just floats inside water when a 200 g mass is placed on it. When the mass is removed, ...
A wooden cube just floats inside water when a 200 g mass is placed on it. When the mass is removed, the cube is 2 cm above the water level. What is the size of each sides of the cube?
A
6 cm
B
8 cm
C
10 cm
D
12 cm
Answer
10 cm
Explanation
Solution
Let a be the size of each side of the cube. Then,
200 × g = (2) × (a2) × 1 × g
\ a = 10 cm