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Tuesday, 18 August 2026
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Physics Past Questions and Answers

Topic: Equilibrium of Forces

Jamb Physics Questions - Equilibrium of Forces

Question 41:
The figure above shows 4 forces 3N, 10N, 3√3N and 6N acting on a particle P. The resultant of he four forces is
  • A 5N
  • B 5√ 3N
  • C 10N
  • D 10√ 3N
View Answer & Explanation
Question 42:
I. All the three forces must be concurrent.
II. The upward force is equal to the downward force.
III. The algebraic sum of the moment about any point must be zero.
which of the above conditions must hold for a body acted upon by a system of three coplanar forces equilibrium?
  • A I and II only
  • B I and III only
  • C II and III only
  • D I, II and III
View Answer & Explanation
Question 43:
The d.c generator has essentially the same components as the a.c generator except the presence of?
  • A Slip-ring
  • B Carbon brushes
  • C Split ring
  • D Armature
View Answer & Explanation
Question 44:
A body of mass 4 kg resting on a smooth horizontal plane is simultaneously acted upon by two perpendicular forces 6N and 8N. Calculate the acceleration of the motion
  • A 2.5 ms<sup style='font-size: smaller;'>-1</sup>
  • B 3.0 ms<sup style='font-size: smaller;'>-1</sup>
  • C 4.0 ms<sup style='font-size: smaller;'>-1</sup>
  • D 4.5 ms<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 45:
THe diagram above shows a plank RS pivoted its center of gravity O and is in equilibrium with the weight P and Q. If a weight 2P is added to P the plank will be in equilibrium again by
  • A Moving Q nearer to O
  • B Moving P nearer to O
  • C Addding a weight Q to Q
  • D Moving P further away from O
View Answer & Explanation