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2 Unit 2: Applied Mathematics A

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Question 75

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

A ball A A\,A is released from rest at a point PPP, which is h h\,h metres above horizontal ground.

Exactly one second later a ball B B\,B is thrown vertically downwards from P P\,P with speed 14.7 m s−1^{-1}−1.

Both balls move freely under gravity and hit the ground at the same instant.

a.

Show that A A\,A is in motion for 2 seconds before it hits the ground.

[4]
b.

Find the value of hhh.

[1]
c.

Find the difference between the speeds of the two balls as they hit the ground.

[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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