But nowhere (at least in the first couple of levels) does it refer to the slope of the mountain - it says the task is to find "the path of the sled".
But even ignoring that, nowhere does it define the relationship between t and x. What I assume they mean but don't say is that x=t. That's arbitrary.
Also I assume you mean the path of the sled is (t, f(t)) where f is the function defining the slope. If the path of the sled had a value of (x,y) it would be stationary :)
But even ignoring that, nowhere does it define the relationship between t and x. What I assume they mean but don't say is that x=t. That's arbitrary.
Also I assume you mean the path of the sled is (t, f(t)) where f is the function defining the slope. If the path of the sled had a value of (x,y) it would be stationary :)