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This film introduces the concept of
acceleration. A spot is seen moving in an irregular,
repeated path. Then the velocity vector of this spot is
shown. Acceleration is introduced by noting that the head of
the velocity vector also moves in its own irregular,
repeated path. The computer is asked to perform the same
operation on the tip of the velocity vector as it did on the
original spot. In other words it determines the speed and
direction of the head of the velocity vector and displays
this also as an arrow - the acceleration of the original
spot.
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