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Monday, 17 August 2026
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Physics Past Questions and Answers

Topic: Projectiles

Jamb Physics Questions - Projectiles

Question 11:
The fig above shows a uniform wood of weight 200Nand length 50m. It is pivoted at one end and suspended by a cord at the other end at an angle of 30 degrees to the wood. calculate the tension in the cord if the wood is horizontal
  • A 10N
  • B 20N
  • C 100N
  • D 200N
View Answer & Explanation
Question 12:
Two bodies X and Y are projected on the same horizontal plane, with the same initial speed but at angles 30 and 60 respectively to the horizontal. Neglecting air resistance, the ratio of the range of X to that of Y is
  • A 1:1
  • B 1:2
  • C √3:1
  • D √3
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Question 13:
An object of mass 100g projected vertically upwards from the ground level has a velocity of 20ms-1 at a height of 10m. calculate its initial kinetic energy at the ground level.[g = 10ms-2, neglect air resistance]
  • A 10 J
  • B 20 J
  • C 30 J
  • D 50 J
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Question 14:
An electric water pump rate 1.5 kW, lifts 200kg of water through a vertical height of 6 meters in 10 seconds. What is the efficiency of the pump? [g = 10ms-2, neglecting air resistance]
  • A 90.0%
  • B 85.0%
  • C 80.0%
  • D 65.0%
View Answer & Explanation
Question 15:
A ball of mass 0.15kg is kicked against a rigid vertical wall with a horizontal velocity of 50ms-1. If it rebounced with a horizontal velocity of 30ms-1, Calculate the impulse of the ball on the ball · ·
  • A 3.0Ns
  • B 4.5Ns
  • C 7.5Ns
  • D 12.0Ns
View Answer & Explanation