tiny-tim said:Hi chengbin!
This is colloquial English …
"hit" (here) means "reach" … it reaches the ice patch, and is slowed down while crossing it.
(see http://en.wikipedia.org/wiki/Colloquialism" )
The "Unsolvable Puzzle" is a hypothetical situation that involves a puck traveling on an air table and attempting to come to a complete stop within a very short time frame of 0.42 seconds.
This puzzle is considered unsolvable because it violates the laws of physics. According to Newton's first law of motion, an object in motion will remain in motion unless acted upon by an external force. In this case, the puck would need to experience an external force to stop within such a short time frame, which is not possible on an air table.
No, this puzzle cannot be solved using any scientific principles or theories. As mentioned before, it goes against the laws of physics and is therefore not possible in the real world.
Despite being unsolvable, this puzzle raises interesting questions about the limitations of our understanding of physics and the concept of time. It also serves as an example of how complex and unpredictable physical systems can be.
No, there is no way to modify this puzzle to make it solvable while still adhering to the laws of physics. However, it can be modified to serve as a thought experiment or discussion topic to explore the boundaries of our scientific knowledge.