3, it still has many ups and downs and turns.
These curves will cause the person to change direction constantly.
This constant bending will create more friction and slow them down.
Therefore, person 2 is also not the fastest.
Now, let’s compare the last two: person 1 and person 4.
Both of these slides look much straighter than the others.
But if you look very closely, they are not exactly the same.
Slide number 1 is a straight, steep incline from the very top to the bottom.
It is a
