Asked in PMC Practice Test 29 (2021) 2021Moderate

An object moving in a circle is tied to a string. What happens when the string is cut?

Correct answer: B. it flies off along a tangent

  • A. it continues moving in a circle
  • B. it flies off along a tangent
  • C. it falls straight down
  • D. none of these

Explanation

An object moving in a circle is tied to a string. When the string is cut, it flies off along the tangent due to centripetal force.

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