A seat on a Ferris wheel moves at a constant tangential speed around the wheel. If the seat is 7 m from the center of the wheel and has a tangential speed of 0.5 m/s, what centripetal acceleration does the seat experience?

Centripetal acceleration is calculated with a = v²/r, where v is tangential speed and r is the distance from the center. Substituting the values gives a = (0.5 m/s)² ÷ 7 m = 0.25 ÷ 7 ≈ 0.036 m/s², which rounds to 0.04 m/s². The correct choice is A, 0.04 m/s².

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