A small bead slides without friction along the wire shown. It begins at A and slides by gravity past B, which doesn't touch the rest of the wire. The potential energy of the bead is greatest at point
1) A,
2) B,
3) C,
4) D,
5) E,
and the bead has its maximum momentum at point
6) A.
7) B.
8) C.
9) D.
10) E.
Answer: 1, 9
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