Suppose you are rotating a ball attached to a string in a circle.?

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Suppose you are rotating a ball attached to a string in a circle.?

Suppose you are rotating a ball attached to a string in a circle. If you allow the string to wrap around your finger, does the rotational velocity of the ball change as the string shortens?

PICK ONE:

Yes, the rotational velocity decreases because you decrease the rotational inertia.
Yes, the rotational velocity increases because you decrease the rotational inertia.
No, the rotational velocity of the ball does not change because the angular acceleration is constant.

2007-12-31 10:05:04 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics

2 answers

Yes, the rotational velocity increases because you decrease the rotational inertia.

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2007-12-31 10:07:33 · answer #1 · answered by odu83 7 · 1⤊ 0⤋

Yes, the rotational velocity decreases because you decrease the rotational inertia.

2007-12-31 10:12:33 · answer #2 · answered by Anonymous · 0⤊ 1⤋