Chapter 4, Section 1 Speed and Velocity.

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Presentation transcript:

Chapter 4, Section 1 Speed and Velocity

Speed speed: how quickly something moves

Types of Speed average speed: the total distance of a trip divided by the total time instantaneous speed: the actual speed an object has at a given moment

Velocity velocity: speed with direction Use the same equation! Positive when moving forward (to the right) Negative when moving backward (to the left)

Velocity Example: A train travels at 100 km/hr heading east to reach a town in 4 hours. The train then reverses and heads west at 50 km/hr for 4 hours. What is the train’s position now compared to where it started? Looking for: Given: Relationships (equations): Solution: