The discussion revolves around the concept of centripetal acceleration in circular motion, specifically addressing when to use negative versus positive values in the formula for acceleration.
The conversation is ongoing, with participants providing insights about the vector characteristics of acceleration and velocity. There is no explicit consensus, but various interpretations of the sign's relevance are being examined.
Participants are considering the implications of directionality in circular motion and how it relates to the formula for centripetal acceleration.
v^2/R gives you the magnitude of the acceleration; the direction is always towards the center.StephenD420 said:When do you use -v^2/R instead of positive v^2/R for the acceleration in circular motion?