Oxford PAT 2015, Question 11

2015_paper__page11

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2 thoughts on “Oxford PAT 2015, Question 11

  1. How come we don’t have to consider the extra distance travelled since the ball was lauched at a slight angle? (10+s) where s is the distance between the max altitude and horizontal?

    1. The equation s = 5t – 10t²/2 takes into account the fact that the ball is originally going up at 5m/s.

      If you plot s against time you find that the ball reaches a maximum height at t = 0.5, and at that time s is 1.25m. After that it starts going downwards and after 2 seconds it ends up at -10m.

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