Jersey Shore\'s Nicole \"Snooki\" Pollozi is on the outside edge of a carousel t

Question

Jersey Shore's Nicole "Snooki" Pollozi is on the outside edge of a carousel that is spinning at a constant rate. She decides to have a little more fun by walking radially inward toward the center of the carousel. Ignoring air resistance, why does her rotational rate increase? (L = I?) Since angular momentum is conserved, and I increases, ? must decrease Since angular momentum is conserved, and I decreases, ? must increase The torque of her shoes against the carousel floor induces a torque which causes the carousel to speed up. Since centripetal acceleration is ac = v2/r, and r decreases, ac must increase

Explanation / Answer

The force in the string. It doesn't act "toward the axis of the post" -- it acts a distance of R from the axis, where R is the radius of the post.

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