Question

Which of the following equations or principle is most suitable to solve given question.

A block of mass $m$ remains at rest on a table when a piece of paper is pulled out from under it.

• A. Newton's first law(law of inertia)
• B. Newton's second law ($F_{net}$ = ma)
• C. Newton's third law (For every action there is an equal and opposite reaction)
• D. Newton's law of universal gravitation
• E. Conservation of linear momentum

Answer 1

The correct option is A Newton's first law(law of inertia)

Newton's First Law of Motion - sometimes referred to as the law of inertia states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Hence a piece of mass remains at rest on a table when a piece of paper is suddenly pulled out from under it.