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Wednesday, 19 August 2026
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Physics Past Questions and Answers

Topic: Equilibrium of Forces

Jamb Physics Questions - Equilibrium of Forces

Question 71:

Consider the three forces acting at O and in equilibrium as shown in the figure. Which of the following equations is/are CORRECT?
I. P\(_1\) cos \(\theta_1\) = p\(_1\) cos \(\theta_2\)
II. P\(_3\) = P\(_1\) cos \(\theta_4\) + P\(_2 cos_2\)
III. P\(_1 \sin \theta_1 = P_2 \sin \theta_2\)
  • A I only
  • B II only
  • C III only
  • D I, II and III only
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Question 72:
Which of the following is an example of a couple?
  • A All of the above.
  • B The forces that are applied to the handle of a screwdriver when you twist it.
  • C The forces that are applied to a cross wench to loosen or tighten the lug nuts on a wheel of a car.
  • D The forces that are applied to the steering wheel of a car when you turn it.
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Question 73:
Name the type of equilibrium for each position of the ball
  • A A - unstable, B - neutral, C - stable
  • B A - stable, B - neutral, C - unstable
  • C A - stable, B - unstable, C - neutral
  • D A - unstable, B - stable, C - neutral
View Answer & Explanation