A net force of 125 N is applied to a certain object. As a result, the object accelerates with an acceleration of 24.0 m/s². The mass of the object is
A) 5.21 kg.
B) 2880 kg.
C) 144 kg.
D) 0.200 kg.
E) 3000 kg.

Question

Quizplus · Accepted Answer

The mass of the object can be found using Newton's second law, $F = ma$, where $F$ is the force applied, $m$ is the mass of the object, and $a$ is the acceleration. Rearranging for $m$, we get $m = \frac{F}{a}$. Substituting the given values, $m = \frac{125\,N}{24.0\,m/s^2} = 5.21\,kg$.

A Net Force of 125 N Is Applied to a Certain