Aruin, "The importance of negative acceleration
of the load in free-style lifting," Perceptual and Motor Skills, vol.
The negative acceleration
of projectile is shown in Figure 24.
Videotapes further substantiated that students (83% of those observed) had the misconception that "negative acceleration
always implies an object is slowing down" as indicated by their use of this Linguistic cue.
(Of course the same type of behavior occurs for negative acceleration
.) Due to this positive feedback between acceleration and tempo, both arithmetic and geometric accelerations lead to similar gestures--a relatively slow increase in tempo for most of the gesture which then explodes into a flurry of notes at the end, or the reverse gesture which begins with a flurry.
The upward movement in the third area is a quarter of a sine curve corresponds to an interval marked as [[PHI].sub.2] and enables the transition from positive to negative acceleration