if you know the force applied to an object and measure its acceleration, which equation would you use to…

if you know the force applied to an object and measure its acceleration, which equation would you use to calculate the objects mass?\n○ (m = fa)\n○ (m = af)\n○ (m = a/f)\n○ (m = f/a)
Answer
Explanation:
Step1: Recall Newton's second - law
Newton's second - law is $F = ma$, where $F$ is force, $m$ is mass and $a$ is acceleration.
Step2: Solve for mass
We need to isolate $m$ in the equation $F = ma$. Divide both sides of the equation by $a$: $m=\frac{F}{a}$.
Answer:
$m = F/a$ (the fourth option)