Question: If a ball starts rolling down from a 9 0 - meter - high hill - top ( one side of a valley ) ,

If a ball starts rolling down from a 90-meter-high hill-top (one side of a valley), is it possible for the ball to swing to the other side of the valley that has a height of 100 meters?
No
Yes
If a ball starts rolling down from a 9 0 - meter

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