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Saturday, 15 August 2026
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Physics Past Questions and Answers

Topic: Friction

Jamb Physics Questions - Friction

Question 1:
An air force jet flying with a speed of 335ms-1 went past an anti-aircraft gun. How far is the aircraft 5s later when the gun was fired?
  • A 838m
  • B 3350m
  • C 670m
  • D 1675m
  • E 67m
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Question 2:
A body of mass 6kg rests on an inclined plane. The normal reaction is R and the limiting frictional force is F as shown in the image above. if F = 30N, and g = 10ms2 then the angle of inclination \( \theta \) is
  • A \( 15^{\circ} \)
  • B \( 30^{\circ} \)
  • C \( 45^{\circ} \)
  • D \( 60^{\circ} \)
  • E \( 75^{\circ} \)
View Answer & Explanation
Question 3:
Which of the following statements about friction is NOT correct?
  • A The force of kinetic friction is less than the force of static friction
  • B The force of kinetic friction between two surfaces is independent of the areas in contact provided the normal reaction is unchanged
  • C The force of rolling friction between two surfaces is less than the force of sliding friction
  • D The angle of friction is the angle between the normal reaction and the force of friction
  • E Friction may be reduced by lubriction
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Question 4:
a force of 16N applied 4.0kg block that is at rest on a smooth, horizontal surface. What is the velocity of the block at t = 5 seconds?
  • A 4ms<sup style='font-size: smaller;'>-1</sup>
  • B 10ms<sup style='font-size: smaller;'>-1</sup>
  • C 20ms<sup style='font-size: smaller;'>-1</sup>
  • D 50ms<sup style='font-size: smaller;'>-1</sup>
  • E 80ms<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 5:
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