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Kinematics 2

Kinematics 2. Average and Instantaneous Velocity 2-2, 2-3. Speed. Speed is a scalar. No direction. Your car does not have a velocitometer . It does not tell you direction. Your car’s speedometer indicates the speed only.

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Kinematics 2

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  1. Kinematics 2 Average and Instantaneous Velocity 2-2, 2-3

  2. Speed • Speed is a scalar. • No direction. • Your car does not have a velocitometer. It does not tell you direction. • Your car’s speedometer indicates the speed only. • In physics, we must be very precise when using the terms speed and velocity.

  3. Average Speed

  4. Velocity • Vector • Speed plus direction • Speed is the magnitude of the velocity vector • Can be positive or negative to indicate the direction

  5. Average Velocity

  6. Instantaneous Velocity • The “average” velocity over an infinitesimally short period of time.

  7. Average vs Instantaneous Velocity

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