Question

1. for every action force, there is an _____ and opposite reaction force.

options: equal, unequal, unbalanced, differential

1. calculate: if a 100 n force moves an object at 5 m/s², how much mass does it have? (hint, you have to rearrange the force formula)

options: 2000 kg

Explanation:

Step1: Recall force - mass - acceleration formula

The formula for force is $F = ma$, where $F$ is force, $m$ is mass and $a$ is acceleration. We need to solve for $m$.

Step2: Rearrange the formula for mass

Rearranging $F = ma$ gives $m=\frac{F}{a}$.

Step3: Substitute given values

We are given that $F = 100\ N$ and $a = 5\ m/s^{2}$. Substituting these values into the formula $m=\frac{F}{a}$, we get $m=\frac{100}{5}$.

Step4: Calculate the mass

$\frac{100}{5}=20\ kg$.

Answer:

$20\ kg$