A child rides on a Ferris Wheel at the State Fair. The seat always faces to the

Question

A child rides on a Ferris Wheel at the State Fair. The seat always faces to the right in the diagram below. There are three forces that act on the child, the child?s weight, W, the normal force of the seat, N, and the force of friction between the child and the seat, f.

At which listed location(s) does the gravitational force, W, contribute to the centripetal force on the child and not oppose it?

a. Position A only.

b. Position B only.

c. Position C only.

d. Positions A and C.

At which position(s) will the magnitude of the normal force, N, be the greatest?

a. At position A only.

b. At position B only.

c. At position C only.

d. At position D only.

e. It is the same at all the listed locations.

If friction were very small and there is no grab bar across the seat, where would the child be in the greatest danger?

a. At position A only.

b. At position B only.

c. At position C only.

d. At position D only.

e. The danger is the same everywhere.

Explanation / Answer

1)option (a) 2)option (c) 3)option (b)

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