We are all familiar with Newton’s Second Law of Motion. It is the force applied on a body with of the body as F=ma (mass multiplied by acceleration), in other words, the force gives the rate at which the linear momentum of body changes.
The concept of Newton’s Second Law of Motion can also be applied on a body in rotational motion. Here the law related to the torque acting on the body with the angular acceleration of the body.
In upcoming articles, we will discuss the angular momentum of a rotating body which is the angular counterpart of linear momentum. Similar to the case of translational motion, in rotational motion, applied torque on a body gives the rate of change of angular momentum of the body. This we will study in detail when we study the analysis and applications of angular momentum.
In this article, we will restrict ourselves to the understanding of Newton’s Law for rotational motion and its applications.
See the video below to understand the concept and its applications
There are several physical situations on which problems on rotational motion are framed on applications of Newton’s Second Law. See the example videos below to understand the applications of Newton’s Second Law in different cases of Rotational Motion: