Determine the force of gravity acting on a marble slab 1 meter long, 50 cm wide and 10 cm thick.

Initial data: а (slab length) = 1 m; b (slab width) = 50 cm; s (slab thickness) = 10 cm.

Reference data: g (acceleration due to gravity) = 10 m / s ^ 2, according to the condition ρ (density of marble) = 2700 kg / m ^ 3.

SI system: b = 50 cm = 0.5 m; s = 10 cm = 0.1 m.

1) Determine the mass of the marble slab: m = ρ * V = ρ * a * b * s = 2700 * 1 * 0.5 * 0.1 = 135 kg.

2) Let’s calculate the force of gravity acting on the marble slab: Ft = m * g = 135 * 10 = 1350 N or 1.35 kN.

Answer: The gravity is 1.35 kN.