Search SchoolNGR

Monday, 20 April 2026
Register . Login

Physics Past Questions and Answers

Topic: Resolution and composition of forces in two perpendicular directions

Jamb Physics Questions - Resolution and composition of forces in two perpendicular directions

Question 1:
Which of the following statements are correct about an object in equilibrium under parallel forces? i. the total clockwise moments of the forces about any point equals the total anti-clockwise moments about the same point. ii. the total forces in one direction equals the total forces in the opposite direction. iii. the resolved components along the x-axis equals the resolved components along the y-axis.
  • A I and ii only
  • B I and iii only
  • C Ii and iii
  • D I, ii, and iii only
View Answer & Explanation
Question 2:
A ball is moving at 18ms-1 in a direction inclined at 60o to the horizontal. The horizontal component to its velocity is
  • A 9√3ms<sup style='font-size: smaller;'>-1</sup> ·
  • B 6√3ms<sup style='font-size: smaller;'>-1</sup> ·
  • C 8√3ms<sup style='font-size: smaller;'>-1</sup> ·
  • D 9ms<sup style='font-size: smaller;'>-1</sup> ·
View Answer & Explanation
Question 3:
The diagram above shows a lift pump with valves at P and Q. During a downward stroke of the piston
  • A Both valves are open
  • B P is open while Q is closed
  • C P is closed while Q is open
  • D Both valves are closed
View Answer & Explanation
Question 4:
the diagram above shows forces 4N, 6N, 10N and 8N which act at a point O in the directions indicated. the net horizontal force is
  • A 13N
  • B 17N
  • C √3N
  • D 7√3N
View Answer & Explanation
Question 5:
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