Combining velocities - PowerPoint PPT Presentation

Notes: 11.2

Notes: 11.2. Speed &amp; Velocity. Speed. A. The ratio of the distance an object moves to the amount of time the object moves. B. The SI unit of speed is m/s. However, it is useful to use km/h when talking about the speed of a car. Average Speed.

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Matter and Motion

Matter and Motion. You know an object is in motion if it is changing position. You know an object is changing position if it moves relative to a reference point. . Distance and Displacement. Distance is the length of the route you will travel.

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Velocity and Acceleration

Velocity and Acceleration. Velocity . = speed in a direction! Examples: 5 m/s up 12 mph north 1,425 k/h south southwest. Velocity . To compute first figure average speed. S= d/t Then add the direction!. Combining velocities. You are on an escalator that goes up 1 m/s.

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