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• Examples of motion in one dimension: – Displacement, velocity, acceleration, free fall, and …. In a straight line. • An example of motion in two dimension (x and y axis) is projectile motion. • An example of a three dimensional motion (x, y and z axis) is motion of a bird or an insect since it is flying in space. 12 CMPE department-TIU
velocity = speed + direction of motion Things that have both a magnitude and a direction are called vectors. More on vectors in Ch.3. For 1D motion (motion along a straight line, like on an air track), we can represent the direction of motion with a +/– sign. + = going right .
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Instantaneous acceleration of the proton at t = 3s. P6: A rocket is launched vertically from the ground with an initial velocity of 80m/s. It ascends. with a constant acceleration of 4 m/s2 to an altitude of 10 km. Its motors then fail, and the. rocket continues upward as a free fall particle and then falls back down.
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• Kinematics – branch of physics; study of motion • Position (x) – where you are located • Distance (d) – how far you have traveled, regardless of direction • Displacement (Dx) – where you are in relation to where you started Distance vs. Displacement • You drive the path, and your odometer goes up by 8 miles (your distance).
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motion; a rotating body or a special shape can alter the flow of air around the body, which may induce a curved motion or lift like the flight of a baseball or golf ball. We shall begin our analysis by neglecting all interactions except the gravitational interaction. y. x (t) y (t) O x. y. 0. r (t) 0. v. 0. ˆi ˆj. Figure 5.2 . A coordinate ...
Definition: Quantity of Motion . The quantity of motion is the measure of the same, arising from the . velocity and quantity of matter conjointly. The motion of the whole is the sum of the motion of all its parts; and therefore in a body double in quantity, with equal velocity, the motion is double, with twice the velocity, it is quadruple.
These notes were updated in 2022 to reflect corrections that readers have noticed. Chapter 1: Introduction to Classical Mechanics (PDF) Chapter 2: Units, Dimensional Analysis, Problem Solving, and Estimation (PDF - 4.5 MB) Chapter 3: Vectors (PDF - 4.4 MB) Chapter 4: One Dimensional Kinematics (PDF - 3.2 MB)
