Question

A cubical block of side 10cm and with a mass of 600gm floats in water. How much cube is submerged into water?
A. 50%
B. 60%
C. 40%
D. 30%

Answer 1

its C 40 percentages

Answer 2

Hey dear,

● Answer -
B) 60 %

● Explaination -
# Given -
l = 10 cm
m = 600 g

# Solution -
Lets consider ρ0 and ρ be density of water & wooden block respectively.

Density of wooden block -
ρ = m / V
ρ = m / l^3
ρ = 600 / 10^3
ρ = 0.6 g/cm^3

Fraction of the cube submerged in water is calculated by -
V'/V = ρ/ρ0
V'/V = 0.6/1
V'/V = 0.6
V'/V = 60 %

Therefore, 60% of the cube will be submerged under water.


Hope this helps you...