Question

question 4 of 5
if a force of 20 newtons causes a skateboard to accelerate at a rate of 10 meters per second per second, what is the mass of the skateboard?
1 kilogram
20 kilograms
10 kilograms
2 kilograms

Explanation:

Step1: Recall Newton's Second Law

Newton's Second Law states $F = ma$, where $F$ is force, $m$ is mass, and $a$ is acceleration. Rearrange to solve for mass: $m = \frac{F}{a}$

Step2: Substitute given values

Given $F = 20\ \text{N}$, $a = 10\ \text{m/s}^2$. Substitute into the formula:
$m = \frac{20}{10}$

Step3: Calculate the mass

Perform the division to find the mass.
$m = 2$

Answer:

2 kilograms