Motion, Velocity, Acceleration

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Presentation transcript:

Motion, Velocity, Acceleration “flying around”

The fly at time t =0.5

The fly at time t =2

The fly at time t=4

Velocity The velocity of the fly is a vector whose magnitude is the fly’s speed and which points in the direction of motion of the fly It is tangent to the fly’s path when its base is placed at the fly’s position. If the position is given by , then the velocity is given by

Acceleration Likewise the acceleration of the fly is defined to be: What can we say about the direction of the acceleration of the fly with respect to the trajectory? Not too much, as we shall see with some examples.