What is the difference between one, two, and three dimensional motion?Įxplain the statement with an example “ The direction in which an object moves is given by the direction of the velocity of the object and not by the direction of acceleration”.ĬBSE Motion in Straight Line Class 11 Notes- PDF Download How can distance traveled be calculated from a velocity-time graph? State the condition where the distance and displacement of a moving object have the same magnitude. This CBSE Class 11 Physics Chapter 3 Notes Motion in a Straight Line will set fundamentals for students interested in pursuing a career in Physics.ĬBSE Class 11th physics chapter 3 notes are useful and dedicated entirely to the student's CBSE updated Syllabus Motion in a straight line is a chapter you cannot afford to skip in physics as it forms the very basis of the entire subject. When we demonstrate this on the number line with x, v, a on the Y-axis and t on the X-axis, then we would have. Here, velocity is constant during the course of motion.Īlso, acceleration is zero during the course of motion. If a body is said to be in uniform motion, the body completes equal distances in equal intervals of time. In all these equations, acceleration is considered to be constant. This is nothing but the first equation of motion. It refers to the actual path traversed by the object during the course of motion. To express the change in position, we consider two physical quantities. Position of an object is always expressed with respect to some reference point which we generally account to as origin. We may confine ourselves to the study of rectilinear motion, which is the study of motion of objects along a straight line. We would consider the objects as point mass objects.Īn object can be taken as a point mass object if during the course of motion, it covers distances much greater than its own size. The object in one situation may be at rest while the same object in another situation may be in motion.įor example, the driver of a moving car is in motion with respect to an observer standing on the ground whereas, the same driver is at rest with respect to the man(observer) in the passenger’s seat. Rest and motion are dependent on the observer. It is the branch of mechanics, which involves the study of movement of physical objects considering the factors that cause movement.Īn object is said to be at rest when it does not change its position with respect to its surroundings.įor example, the white board in a classroom is at rest with respect to the classroom.Īn object is said to be in motion when it changes its position with respect to its surroundings.įor instance, when we walk, run or ride a bike, we are said to be in motion with respect to the ground. It is the branch of mechanics, which involves the study of the movement of physical objects without considering the factors that cause movement. It is the branch of mechanics, which involves the study of physical objects at rest. It may be broadly categorized into the following branches: Mechanics refers to the branch of Physics, which involves the study of the movement of physical objects.
0 Comments
Leave a Reply. |