Question

what is the mass of a falling rock if it produces a force of 147n? the acceleration rate for gravity is 9.8 m/s2.

Explanation:

Step1: Recall Newton's second law

$F = ma$, where $F$ is force, $m$ is mass and $a$ is acceleration. We want to find $m$, so we can rewrite the formula as $m=\frac{F}{a}$.

Step2: Substitute given values

Given $F = 147N$ and $a=9.8m/s^{2}$. Then $m=\frac{147}{9.8}$.

Step3: Calculate the mass

$m = 15kg$.

Answer:

$15kg$