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MMLU / When a ball at rest hangs by a single vertical string tension in the string is…

Problem

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question

When a ball at rest hangs by a single vertical string tension in the string is mg. If the ball is made to move in amhorizontal circle so that the string describes a cone string tension

choices

  1. is mg
  2. is greater than mg always
  3. is less than mg always
  4. may be greater or less than mg depending on the speed of the ball

subject

conceptual_physics

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Source and history

Official source

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