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Saturday, 15 August 2026
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Physics Past Questions and Answers

Topic: Scalars and Vectors

Jamb Physics Questions - Scalars and Vectors

Question 1:
A tugboat is travelling from Asaba to Onitsha across the River Niger with a resultant velocity of 20 knots. If the river flows at 12 knots, the direction of motion of the boat relative to the direction of water flow is
  • A 36.87<sup style='font-size: smaller;'>o</sup>C
  • B 53.13<sup style='font-size: smaller;'>o</sup>C
  • C 90<sup style='font-size: smaller;'>o</sup>C
  • D 136<sup style='font-size: smaller;'>o</sup>C
  • E 143.13<sup style='font-size: smaller;'>o</sup>C
View Answer & Explanation
Question 2:
Two forces whose resultant is 100N, are at right angle to each other. If one of them makes an angle 30o with the resultant, determine its magnitude.
  • A 8.66N
  • B 50.0N
  • C 57.7N
  • D 86.6N
View Answer & Explanation
Question 3:
Which of the following is a set of vectors?
  • A Force, mass and moment
  • B Acceleration, velocity and moment
  • C Mass, weight and density
  • D Mass, volume and density
View Answer & Explanation
Question 4:
Which of the following is a set of vectors?
  • A Force, mass and moment
  • B Acceleration, velocity and moment
  • C Mass, weight and density
  • D Mass, volume and density
View Answer & Explanation
Question 5:
The magnitude of the resultant of two mutually perpendicular forces, F1 and F2 is 13N, if the magnitude of F1 is 5N, what is the magnitude of F2?
  • A 2.6N
  • B 6.0N
  • C 12.0N
  • D 18.0N
View Answer & Explanation