Newton's Third Law — Prelims Questions

Which of the following statements is INCORRECT regarding Newton's Third Law of Motion?

A $5,\text{kg}$ block rests on a horizontal table. The gravitational force on the block is $49,\text{N}$ downwards. What is the reaction force to this gravitational force according to Newton's Third Law?

A person is walking on a rough horizontal surface. Which of the following correctly describes an action-reaction pair involved in the person's forward motion?

A $1000,\text{kg}$ rocket expels $50,\text{kg}$ of exhaust gases downwards at a speed of $200,\text{m/s}$ relative to the rocket in $1,\text{s}$. Assuming constant exhaust velocity, what is the average thrust force on the rocket?

Two blocks, A and B, of masses $m_A$ and $m_B$ respectively, are placed in contact on a frictionless horizontal surface. A horizontal force $F$ is applied to block A. What is the magnitude of the force exerted by block A on block B?

A bird is flying in the air. Which of the following correctly identifies an action-reaction pair for the bird's flight?