Physics 9702 · AS & A Level · Non-uniform motion

Non-uniform motion — practice question

A ball is projected horizontally through still air from the top of a very tall building. Air resistance acts on the ball. What happens to the horizontal component and to the vertical component of the ball’s velocity?

  • Ahorizontal component of velocity decreases to zero; vertical component of velocity increases at a constant rate
  • Bhorizontal component of velocity decreases to zero; vertical component of velocity increases to a constant value
  • Chorizontal component of velocity remains constant; vertical component of velocity increases at a constant rate
  • Dhorizontal component of velocity remains constant; vertical component of velocity increases to a constant value

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