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Physics (AS & A Level) · Oct / Nov 2024 · Paper 13 · Question 7

9702Non-uniform motion

Two identical balls are projected vertically upwards from ground level with the same initial velocity. Ball X is in a vacuum and ball Y is in air. Which statement about the motion of the balls is correct?

  1. ABall X reaches a greater maximum height and in a longer time than ball Y.
  2. BBall X reaches a greater maximum height and in a shorter time than ball Y.
  3. CBall Y reaches a greater maximum height and in a longer time than ball X.
  4. DBall Y reaches a greater maximum height and in a shorter time than ball X.

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Correct answer: A. Ball X reaches a greater maximum height and in a longer time than ball Y.

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