Question

The density of water is 1 gram per cm3. An object floats in water if its density is less than water’s density, and it sinks if its density is greater than water’s. Will a cylindrical log with radius 0.4 meters, height 5 meters, and mass 1,950 kilograms sink or float? Explain your reasoning.

Answer 1

it will float

Explanation:

d = m/v

m = 1950

v = 3.14 x 5 x 0.4 x 0.4 = 2.5

d 1950/2.5

= 780kg/m3

water = 1000kg/m3