## If a wheel turns with a constant rotational speed, each point on its rim moves with a constant rotational velocity. This is because rotational velocity is directly proportional to the radius of the circular path, and since all points on the rim of the wheel have the same radius, they will all have the same rotational velocity.

The statement "each point on its rim moves with constant translational acceleration" is not true. Translational acceleration refers to the change in velocity in a straight line, whereas the motion of the points on the rim of a wheel is circular, resulting in rotational motion.

The statement "the wheel turns with constant translational acceleration" is also not true. As mentioned before, the motion of the wheel is rotational, not translational.

The statement "the wheel turns through equal angles in equal times" is true. When a wheel rotates at a constant rotational speed, it completes each revolution in the same amount of time. Therefore, it turns through equal angles in equal intervals of time.

The statement "the angle through which the wheel turns in each second increases as time goes on" is false. If the wheel is turning at a constant rotational speed, the angle through which it turns in each second remains the same over time.

Similarly, the statement "the angle through which the wheel turns in each second decreases as time goes on" is also false. The angle remains constant when the wheel turns at a constant rotational speed.

In conclusion, the correct statement is that each point on the wheel's rim moves with a constant rotational velocity, and the wheel turns through equal angles in equal times when it rotates at a constant rotational speed.