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The question is, if not a maelstrom, certainly a melange at least.

Especially noteworthy is the part where "acceleration of a body changes
at constant velocity".

Acceleration is the rate of change of velocity. If velocity is constant, then there is
no acceleration. If velocity changes at a constant rate, then acceleration is constant.
Velocity would have to change at a rate that changes, in order to have a changing
acceleration.

Now, what is it you're looking for ? A "linear or circular motion equation" ? There are
oodles of them, describing the relationship among the position, displacement, speed,
velocity, and acceleration, in one, two, or three dimensions, in rectangular, polar, and
spherical coordinates, for linear motion, and an entire separate set of equations for
circular motion.

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12y ago

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What accelerates while traveling at constant velocity?

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No. It is a matter of definition. Acceleration is defined as a change of velocity. Technically, one must distinguish between velocity and speed. Velocity is a vector and includes the information about the magnitude (speed)and direction. One can have a constant speed and an acceleration (as in circular motion) but, by definition, constant velocity means zero acceleration.


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Can a body have 0 velocity and still acceleration?

Yes, a body can have zero velocity and still have acceleration if its speed changes directions while its magnitude remains constant. This situation occurs when an object is moving in a circular path at a constant speed. The change in direction of velocity due to the circular motion results in centripetal acceleration.


Does the speed of a car moving in a circular path at 15 mph remain constant Or does the acceleration or its velocity remains constant?

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