![]() Velocity is a vector quantity with a magnitude and a direction because it is based on displacement, a vector quantity. No matter how long the trip was, velocity determines how quickly an object changes its position. The definition of velocity is somehow similar, but it refers to the rate of change of displacement rather than the rate of change of distance. The units for speed are, rather logically, meters per second (represented by textm/sm/s), and the equation shows meters divided by seconds. ![]() The equation itself gives the units for speed. The time change here, denoted by the symbol tt, is measured in seconds (represented by an ss). The speed symbol (ss) in equations stands for the distance traveled divided by the time interval. As a result, it will always be positive, similar to how speedometers on cars can only display positive numbers. Speed is a scalar quantity with simply a magnitude and no direction because it depends on distance, a scalar quantity. In terms of physics, we would say it is the rate at which distance is changing. Speed is basically the rate at which a certain distance is covered. You’ll also be learning the speed and velocity in kinematics with calculations. Today you will be learning the definition, types, examples, and equations of kinematics. These features can be used to take a theoretical model from kinematics and use physics and thermodynamics to determine how to construct a workable, dependable, and functional real-world system. ![]() Kinetics considers physical forces as well as material characteristics such as mass, stiffness, and tensile or compressive strength. Kinematics is analytically derived from kinematics by calculating physical properties and forces using algebra. In contrast to kinematics, kinetics takes into account physical properties like the mass of the bodies or the forces moving them. Many theoretically conceivable designs would be likely to fail without consideration of the materials and the forces operating upon them. Kinematics can assist in assessing a design’s theoretical viability, but designing for the real world involves additional complexity. The model takes into account the initial body velocities and geometries. Kinematics is very useful in the conceptual design of mechanical systems.
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