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Sunday, 01 November 2026
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Physics Past Questions and Answers

Jamb 1985 Physics Questions

Question 6:
A block of mass 2.04kg resting on a smooth horizontal plane is acted upon simultaneously by two-forces, 10N due North and 10N due East. The magnitude of the acceleration produced by the force on the block is
  • A 0.10ms<sup style='font-size: smaller;'>-2</sup>
  • B 7.07ms<sup style='font-size: smaller;'>-2</sup>
  • C 10.00ms<sup style='font-size: smaller;'>-2</sup>
  • D 14.10ms<sup style='font-size: smaller;'>-2</sup>
  • E 20.00ms<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 7:
A metal block of mass 5kg lies on a rough horizontal platform. If a horizontal force of 8N applied to the block through its center of mass just slides the block on the platform, then the coefficient of limiting friction between the block and platform is
  • A 0.16
  • B 0.63
  • C 0.80
  • D 1.60
  • E 2.00
View Answer & Explanation
Question 8:
Which of the following is NOT a force?
  • A Friction
  • B Tension
  • C Upthrust
  • D Weight
  • E Impulse
View Answer & Explanation
Question 9:
Two masses 40g and 60g respectively, are attached firmly to the ends of the light meter rule. The center of gravity of the system is
  • A At the mid-point of the meter rule
  • B 40cm from the lighter mass
  • C 40cm from the heavier mass
  • D 60cm from the heavier mass
  • E Indeterninate because the meter-rule is light
View Answer & Explanation
Question 10:
A 0.05kg bullet travelling at 500ms-1 horizontally strikes a thick vertical wall. It stops after penetrating through the wall horizontal distance of 0.25m. What is the magnitude of the average force the wall exerts on the bullet?
  • A 25N
  • B 50N
  • C 250N
  • D 500N
  • E 25 000N
View Answer & Explanation