9709/42

Mathematics 9709/42May/June 2023

Cambridge A-Level · Mechanics · worked solutions for every part, with the mark scheme

7
questions
50
marks
75
minutes

Topics Energy, Work and Power · Forces and Equilibrium · Kinematics of Motion in a Straight Line · Momentum · Newton's Laws of Motion

Q13MEnergy, Work and PowerFree sample

A particle of mass 1.6 kg1.6\text{ kg} is dropped from a height of 9 m9\text{ m} above horizontal ground. The speed of the particle at the instant before hitting the ground is 12 m s112\text{ m s}^{-1}.

Find the work done against air resistance.

The rest of this paper

6 more questions
  • Q2Momentum · Energy, Work and Power4M
  • Q3Forces and Equilibrium6M
  • Q4Energy, Work and Power · Forces and Equilibrium7M
  • Q5Forces and Equilibrium6M
  • Q6Kinematics of Motion in a Straight Line11M
  • Q7Newton's Laws of Motion · Kinematics of Motion in a Straight Line13M
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