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MMLU-Pro / 9627 / A 100-gram marble strikes a 25-gram marble lying on a smooth horizontal surface…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A 100-gram marble strikes a 25-gram marble lying on a smooth horizontal surface squarely. In the impact, the speed of the larger marble is reduced from 100 cm/sec to 60 cm/sec. What is the speed of the smaller marble immediately after impact?

category

physics

options

  1. 180 cm/sec
  2. 60 cm/sec
  3. 160 cm/sec
  4. 200 cm/sec
  5. 80 cm/sec
  6. 220 cm/sec
  7. 120 cm/sec
  8. 40 cm/sec
  9. 100 cm/sec
  10. 140 cm/sec

src

stemez-Physics

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