Answer: 36.5N
Step-by-step explanation:
Given that the side length of cube (s) = 0.155m
The buoyant force also regarded as upthrust can be explained as the upward force exerted on by a fluid on an object immersed in it.
Buoyant force is calculated using the formula :
F = density × volume × acceleration due to gravity
Density of water = 1000kg/m^3
Volume of cube = s^3
Volume = 0.155^3 = 0.003723875
Recall:
density = mass / volume
Mass = density * volume
Mass = 1000kg/m^3 * 0.003723875m^3
Mass = 3.723875kg
Buoyant force or upthrust = weight of fluid displaced.
Weight = mass * acceleration due to gravity
Buoyant force = (3.723875 * 9.8)
Buoyant force = 36.493975
= 36.5N