Question

Why wooden plank may it if we stand on it​

Answer 1

Answer:

Newton's first and third laws, really. First law says an object at rest stays at rest unless acted on by an unbalanced force. Third law says that when you exert force to lift the plank (and yourself), you're also exerting equal force down on the plank, which makes those forces balanced.

Explanation:

good morning dear mark me as brainlist

Answer 2

$\huge \sf{ \underline{Answer :-}}$

A plank is timber that is flat, elongated, and rectangular with parallel faces that are higher and longer than wide. Used primarily in carpentry, planks are critical in the construction of ships, houses, bridges, and many other structures.Planks also serve as supports to form shelves and tables.

Usually made from sawed timber, planks are usually more than 1+1⁄2 in (38 mm) thick, and are generally wider than 2+1⁄2 in (64 mm). In the United States, planks can be any length and are generally a minimum of 2 in (51 mm) deep by 8 in (200 mm) wide, but planks that are 2 in (51 mm) by 10 in (250 mm) and 2 in (51 mm) by 12 in (300 mm) are more commonly stocked by lumber retailers. Planks are often used as a work surface on elevated scaffolding, and need to be wide enough to provide strength without breaking when walked on. The wood is categorized as a board if its width is less than 2+1⁄2 in (64 mm), and its thickness is less than 1+1⁄2 in (38 mm).

Newton's first and third laws, really. First law says an object at rest stays at rest unless acted on by an unbalanced force. Third law says that when you exert force to lift the plank (and yourself), you're also exerting equal force down on the plank, which makes those forces balanced.