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Published byAmbrose Hunt Modified over 5 years ago

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Speed/Velocity Distance- the length of a path between two points. Displacement- the length and direction that an object has moved from its starting point. X X Distance Displacement

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Speed: A position change in a certain amount of time. Speed = distance / time or v = d/t - usually measured in m/s Average Speed: d/t, where d is the total distance and t is the total time elapsed. X0X0 XfXf

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Example- A jogger jogs 2 km in 10 min. Calculate the speed. Given: Distance = 2 km Time = 10 min Find: Speed Solution: S = d / t S = 2 km /10 min S =.2 km/min

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Instantaneous Speed: The speed at a particular instant (this quantity is what a speedometer measures).

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Velocity: Tells you how fast and what direction something is moving. Velocity = displacement/time, plus the direction (north, south... etc.) v d /t

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Distance (m) X Final X Initial Time (min) Slope = rise/run =distance/time = speed NOT MOVING Moving away at a constant speed Moving back at a constant speed Not possible! d t 0 1 2 3 4 5 321321 d t 321321 d t 321321 d 321321 t

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d t Instantaneous Speed

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