 How many of you have not done the assignment? I don't know. That is this man who is going to happen. You will find out. Because you are interested in that. Oh, there is Omer Lamar. So let me message you. You should ask a fight bucket to upload. So, either you don't do this. Okay, enough. Focus here is a study of motion without getting into the cause of the motion. Okay, less possible motion, which is called motion in a straight line. Okay, that's the simplest possible type of motion. Motion in a straight line to analyze the motion. Any equation? What equation do we have? S equals to velocity into time. Simple. So this is the only equation I have to analyze the motion, which is uniform. Okay, now, even though I have just one equation at hand, it doesn't mean that questions will be straightforward. Okay, for example, this one. All of your distances are given. And two kinds of things on the uniform motion itself. Motion or anything which you have already in the answer. They want to test your basic. So that's why they put their questions which test the basics of the basics. And that is uniform motion in kinematics. Uniform motion, right? So we had a brief discussion about non-uniform motion, constant acceleration. So if access is fixed, understood? Okay, one to two, it has one acceleration. Two to three, one acceleration and three to four, some other acceleration. But if you look at one to two, this journey, this has constant acceleration, right? So whenever you have a question into two to three parts of constant acceleration. When you solve it, for those who understand a little bit calculus, integral of A d constant. All of you write it down. If acceleration is constant, then solution of A is equal to dv by dt is v is equal to u plus 80. Okay? Solution of this equation. When you integrate, which one should I use in a particular question? Suppose third equation I am writing right now. Out of these three equations, you have to pick which one to use depending on the scenario you are in. Okay? So u t plus half a d square. Okay? End of? So these three equations, which are valid of question. There can be different kinds of questions that can be made. Okay? So the theory is almost 0 to 0. Just equations. How to derive it. And then comes just sheer problem practice. Okay? So let's take a few questions and see how we can apply these. Easy, both difficult. You are in class 11 now. Okay?