MASS ON A ROTATION PROBLEM.
You have a playground round-about with a rider sitting on the edge.

1. The roundabout / rider just revolves at a constant tangential velocity of 1.5m per second.
2. The roundabout/ rider revolves at 1.5m per second Tan velocity, plus the roundabout also has a translation velocity of 1.5m per second along a straight long track.

The **ride experience** will be different for ride 1 and 2

Ride 1 will just have centipedal force at a constant for the rider.

Ride 2 In addition to centipedal force at a constant the rider will be accelerating and
decelerating along the track. (Rigid body rotation with translation Physics)

The ride **experience is different**, yet we have 2 lots of physics that apply, Rigid body rotation with translation physics, then inertial reference frames, if the ride is at a constant velocity along the track it is an inertial reference frame, this physics says ride 1 and 2 will be the same experience, but they are not?

Reference wheel rolling without slipping physics for a point on the wheel.