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4.8 Kinematics (A-level only)

4.8 Kinematics (A-level only)

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Question 20

Two objects, P P\,P and QQQ, are dropped from rest from different heights above level ground.

P P\,P is released from a height of H H\,H metres.

Q Q\,Q is released T T\,T seconds after PPP, from a height of cH cH\,cH metres, where 0<c<10 < c < 10<c<1.

Both objects hit the ground exactly 4 seconds after P P\,P was released. Each object is modelled as a particle and air resistance is modelled as negligible.

Prove that T=4(1−c)T = 4\left(1 - \sqrt{c}\right)T=4(1−c​). Fully justify your answer.

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4.8 Kinematics (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4.8 Kinematics (A-level only)

163 exam-style questions on WJEC A Level Maths 4.8 Kinematics (A-level only), covering 4.8.1 Kinematics (A-level only), 4.8.2 Kinematics (A-level only), and 4.8.3 Kinematics (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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