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Physics 2012 JAMB Past Questions

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6
If a freely suspended object is pulled to one side and released, it oscillates about the point of suspension because the
  • A. acceleration is directly proportional to the displacement
  • B. motion is directed away from the equilibrium point
  • C. acceleration is directly proportional to the square of the displacement
  • D. velocity is minimum at the equilibrium ponit
View Answer & Discuss (2) JAMB 2012
7
An object moves in a circular path of radius 0.5m with a speed of 1ms-1 What is its angular velocity?
  • A. 8 rads-1
  • B. 4 rads-1
  • C. 2 rads-1
  • D. 1 rads-1
View Answer & Discuss JAMB 2012
8
An object of mass 20kg slides down an inclined plane at an angle of 30o to the horizontal. The coefficient of static friction is?
[g = 10ms-2]
  • A. 0.2
  • B. 0.3
  • C. 0.5
  • D. 0.6
View Answer & Discuss (17) JAMB 2012
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
9

A block and tackle is used to raise a load of 250N through a vertical distance of 30m. What is the efficiency of the system if the work done against friction is 1500J?

  • A. 62.5%
  • B. 73.3%
  • C. 83.3%
  • D. 94.3%
View Answer & Discuss (1) JAMB 2012
10
If a load of 1 kg stretches a cord by 1.2cm, what is the force constant of the cord? {g=10ms-2}
  • A. 866Nm-1
  • B. 833Nm-1
  • C. 769Nm-1
  • D. 667Nm-1
View Answer & Discuss JAMB 2012
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