What is the force of gravity acting on a steel cube with an edge 40 cm long and g = 7800kg / m 3.

Let’s find the volume of this cube: (0.4m) ^ 3 = 0.064m ^ 3.
Find the mass of the cube: m = 0.064 × 7800 = 499.2 kg
Find the force of gravity: F = mg = 499.2 × 9.8 = 4892.16N = ~ 4.9kN



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