Question

Which of the following best describes Newton's Second Law of Motion? (more than one answer applies)

Answer 1

I need this answer too.

Answer 2

Answer:

F=m • a

A swimmer turns and kicks off from the end of the pool.

A book will slide across the desk if you exert a force on it.

Explanation:

The first one, F = ma is a direct expression of the Newton's second law of motion. This is because the force exerted on an object changes its momentum like this:

$F= M\frac{dv}{dt}$

where $\frac{dv}{dt} = a$ (acceleration is change in velocity with respect to time)

Thus, the equation will be in the form:

F = ma

The second scenario points to an acceleration produced as a result of the force on an object. This time the feet propel the motion hence, $\frac{F}{m} = a$

The third scenario is the fact that the force produces acceleration on the book.