Explain why an object moving around a circle is said to be accelerating when it has no resultant force acting upon it.

If an object has no resultant force acting upon it then it is moving at a constant speed. Acceleration is a vector quantity meaning that it includes magnitude and direction. When it is moving around a circle the direction in which an object is moving is continuously changing; therefore, the object is constantly accelerating.

Answered by Henry O. Physics tutor

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