Question

define acceleration.​

Answer 1

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• Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

Answer 2

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• acceleration is the rate of change of velocity .
• acceleration measure the speed of changing but not always .
• when an object moves in a circular motion it is still accelerating .

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