A translation means moving something up down or left/right
Lets use that definition to figure the answer out
A). A spinning Wheel
No, because it is spinning, not moving up or down left/right
B). a child swinging on a swing
No because the child is in a swinging state of motion, not left or right, or up or down.
C). The blade of a kitchen blender
No, because it is in a spinning motion, which we ruled out to be incorrect previously.
Therefore the correct choice is
D) A sliding hockey puck
Why?
A sliding puck is always moving left or right, view the hockey field as an XY plane, and it is being translated left & right.
