Chapter 14.2, Problem 29WE

To determine

To find that the ball would return to its starting point.

Answer to Problem 29WE

Yes, the ball will return to its starting point.

Explanation of Solution

Given information: The starting point is $\left(0,1\right)$ and if the ball started from other points on the y-axis between $\left(0,0\right)\text{ and }\left(0,4\right)$ .

The ball started from other points on the y-axis.

The point is between $\left(0,0\right)\text{ and }\left(0,4\right)$

According to the symmetry, the ball will return to its starting point.

Therefore,

The ball will return to its staring point according to the symmetry.