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qid 9832 · physics

Question: Passengers on a carnival ride move at constant speed in a horizontal circle of radius 5.0 m, making a complete circle in 4.0 s. What is their acceleration? (Unit: m/s^2))

  1. 6.5
  2. 15.7
  3. 7.2
  4. 14
  5. 9.8
  6. 8
  7. 10
  8. 3.14
  9. 12
  10. 11.0

Our answer: I. 12 Source quote machine-checked (exact quote)

A machine check confirms the quoted words appear at the source. A person has not yet reviewed these. EARN MARKS as a Human Reviewer

How it was answered

Stored method, replayed by code (kind: formula)

card: formula · card sha256 744f019c6e4205c9…

Current source

OpenStax University Physics Volume 1, Section 4.4 Uniform Circular Motion

https://openstax.org/books/university-physics-volume-1/pages/4-4-uniform-circular-motion

“Uniform circular motion is a specific type of motion in which an object travels in a circle with a constant speed.”

Source quote machine-checked (exact quote)

retrieved 2026-09-18T01:08:25.763Z

page text sha256 0c0316103dbce4cd… · content sha256 99bc72d1af7afda4…

addendum formula_qid9832.formula_ADDENDUM_source_rs20260918T010825Z · sha256 ef1f43948a9a590c… · replaces the version below, addendum sha256 f1ff846b5e6d17bd…

Earlier version (superseded)

https://openstax.org/books/university-physics-volume-1/pages/4-4-uniform-circular-motion

Source weak (http_get_200_text_and_question_terms)

retrieved 2026-09-17T09:30:16.300Z

page text sha256 7eb08335147d2058… · content sha256 —

addendum formula_qid9832.formula_ADDENDUM_source_bf20260917T093016Z · sha256 f1ff846b5e6d17bd… · replaces the version below, addendum sha256 f7273476c01f2689…

Earlier version (superseded)

No public source has been found for this card yet (2 places checked internally).

addendum formula_qid9832.formula_ADDENDUM_source · sha256 f7273476c01f2689…

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