A baseball pitcher is on the mound preparing for the pitch. Which of Newton's law is demonstrating by the ball before it is thrown?

A. Newton's 1st law

B. Newton's 2nd law

C. Newton's 3rd law

D. Newton's law of gravity

It should be Newton's 1st law

Answer: A

Explanation:

Newton's first law or the law of inertia states that a body would continue to be at rest or in a state of constant motion unless acted upon by an external force. When the ball is held in the player's hand, the ball is at rest and would remain at that state unless the player exerts a force to move the ball. Likewise, once the ball is thrown, it will continue to remain at a straight line in constant motion unless an external force acts upon it to change its course of direction.