Nancy is running around a circular track encircling the reservoir where she grew up in Boston....

Question

Question

Nancy is running around a circular track encircling the reservoir where she grew up in Boston. As she's running, which of the following is true?

A. Her shoes need to exert a small, radially inward force on the ground to keep her body moving along the circular track.

B. Her shoes need to exert a small, radially outward force on the ground to keep her body moving along the circular track.

C. Her shoes do not need to exert any force in the radial direction to keep her moving around the circle.

Answer 1

Answer #1

Answer 2

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