practice number #21 an object accelerates 5 m/s² when a force of 20 newtons is applied to it. what is the…

practice number #21 an object accelerates 5 m/s² when a force of 20 newtons is applied to it. what is the mass of the object? 2 kg 4 kg 0 n 100 n

practice number #21 an object accelerates 5 m/s² when a force of 20 newtons is applied to it. what is the mass of the object? 2 kg 4 kg 0 n 100 n

Answer

Explanation:

Step1: Recall Newton's second - law formula

According to Newton's second - law, $F = ma$, where $F$ is force, $m$ is mass, and $a$ is acceleration. We need to find $m$, and we can re - arrange the formula to $m=\frac{F}{a}$.

Step2: Substitute given values

We are given that $F = 20$ N and $a=5$ m/s². Substitute these values into the formula $m=\frac{F}{a}$. So, $m=\frac{20}{5}$.

Step3: Calculate the mass

$\frac{20}{5}=4$ kg.

Answer:

4 kg