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Physics (AS & A Level) · Oct / Nov 2021 · Paper 13 · Question 7

9702Equations of motion

A stone is thrown horizontally off a cliff and then lands in the sea. Air resistance is negligible. Which statement about the stone's motion is not correct?

  1. AThe final displacement of the stone depends upon its initial horizontal velocity.
  2. BThe stone travels with a constant horizontal component of velocity until it hits the water.
  3. CThe stone travels with an increasing vertical component of velocity.
  4. DThe time taken for the stone to hit the surface of the water depends on its initial horizontal velocity.

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Correct answer: D. The time taken for the stone to hit the surface of the water depends on its initial horizontal velocity.

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