Which of the following objects does not have more than one type of motion?

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A screw

A rolling ball

A cycle wheels

Child on a see-saw

answer is D.

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Detailed Solution

A child on a see-saw does not have more than one type of motion.
A rotating screw undergoes two types of motion at the same time. One of them is rotational motion, and the second is translational motion. The screw rotates about an axis and, at the same time, advances in a straight line.
The roller's two types of motion are translational and rotational. The ball's centre of mass moves in translation while the moving ball rotates as part of the centre of mass.
If the bicycle travels in a straight line, then the bicycle wheel rotates on its axis and reciprocates in a straight line. Thus, a bicycle on a straight road has two types of motion: rotational motion and uniform rectilinear motion. Rotational motion can be defined as the movement of an object around a circle following a fixed trajectory. On the other hand, the motion of an object in a straight line is called uniform rectilinear motion.
The child on the swing goes up and down continuously. Therefore, it oscillates up and down. Hence, it is an oscillating motion.

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