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If a car is moving at 90 km/h and it rounds a corner, also at 90 km/h, does it maintain a constant speed? A constant velocity? Yes, because constant velocity requires constant speed in the same direction. If a car moves with a constant velocity, does it also move with a constant speed? The difference between speed and velocity involves What is the average speed in kilometers per hour of a horse that gallops a distance of 15 km in a time of 30 min? You are not moving relative to the chair, but you are moving over 100,000 km/h relative to the Sun. As you read this in your chair, how fast are you moving relative to the chair? Relative to the Sun?
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