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2 Unit 2: Applied Mathematics A

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Question 82

In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2

A ball is projected vertically upwards from ground level with speed 21 m s−1^{-1}−1.

The ball is modelled as a particle moving freely under gravity.

a.

Using the model, find the two times at which the ball is 15 metres above the ground.

[4]
b.

State one modelling assumption you have made in part (a) and explain one effect it has on your answers.

[2]
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2 Unit 2: Applied Mathematics A Questions

  1. A Level
  2. /Maths
  3. /2 Unit 2: Applied Mathematics A

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