9709/42

Mathematics 9709/42May/June 2012

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

7
questions
50
marks
75
minutes

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

Q13MEnergy, Work and PowerFree sample

A block is pulled in a straight line along horizontal ground by a force of constant magnitude acting at an angle of 6060^{\circ} above the horizontal. The work done by the force in moving the block a distance of 5 m5\text{ m} is 75 J75\text{ J}. Find the magnitude of the force.

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6 more questions
  • Q2Forces and Equilibrium4M
  • Q3Kinematics of Motion in a Straight Line7M
  • Q4Forces and Equilibrium7M
  • Q5Forces and Equilibrium · Newton's Laws of Motion7M
  • Q6Energy, Work and Power9M
  • Q7Newton's Laws of Motion · Kinematics of Motion in a Straight Line13M
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