A wooden block has dimensions 10 × 4 × 3 cm. Find the volume of the block, its mass and weight

A wooden block has dimensions 10 × 4 × 3 cm. Find the volume of the block, its mass and weight on the horizontal plane, if it is known that the density of the tree is 500 kg / m3.

Initial data: L (length of a wooden block) = 10 cm (0.1 m); B (width of a wooden block) = 4 cm (0.04 m); S (thickness of a wooden block) = 3 cm (0.03 m).

Reference data: g (acceleration due to gravity) = 9.8 m / s2; by the condition ρ (density of the tree from which the block is made) = 500 kg / m3.

1) Bar volume: V = L * B * S = 0.1 * 0.04 * 0.03 = 0.00012 m3.

2) The mass of the bar: m = ρ * V = 500 * 0.00012 = 0.06 kg.

3) The weight of the bar on the horizontal plane: P = m * g = 0.06 * 9.8 = 0.588 N.