Answer :
when a rigid object (like a merry-go-round) rotates about a fixed axis, it is true about all the points in the object.
What is rigid object?
The idea of a body that does not deform or alter shape is a "hard body." Formally, it is described as a collection of particles having the property that the distance between them stays constant throughout the body's motions.
What is fixed axis?
The rotation of a rigid body, or an item that does not deform when it moves, around a fixed axis is referred to as fixed-axis rotation. We'll demonstrate how to apply the theories we've discovered so far regarding translational motion to a rotating object around a fixed axis.
Everybody experiences the same angular acceleration.
Therefore, when a rigid object (like a merry-go-round) rotates about a fixed axis, it is true about all the points in the object.
Learn more about rigid objects from the given link.
https://brainly.com/question/28173319
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