At the top of a hill, a sled is moving at 5 m/s. Later, it is moving at 20 m/s. How far did the sled descend.
I have no idea how to do this without another variable like acceleration or time.
To determine how far the sled descended, we need additional information such as the acceleration or the time it took for the sled to change its speed. Without this information, it is not possible to calculate the distance directly.
If you have any other additional information or specific details about the situation, please provide them so that we can assist you further.