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Monday, 17 August 2026
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Physics Past Questions and Answers

Topic: Projectiles

Jamb Physics Questions - Projectiles

Question 21:
A ball of mass 0.1kg is thrown vertically upwards with a speed of 10ms-1 from the top of a tower 10m high. Neglecting air resistance, its total energy just before hitting the ground is
(take g = 10ms-2)
  • A 5 J
  • B 10 J
  • C 15 J
  • D 20 J
View Answer & Explanation
Question 22:
A stone of mass 1kg is dropped from a height of 10m above the ground and falls freely under gravity. Its kinetic energy 5m above the ground is then equal to
  • A Its kinetic energy on the ground
  • B Twice its initial potential energy
  • C Its initial potential energy
  • D Half its initial potential energy
View Answer & Explanation
Question 23:
If an object is placed at a height of tem above the ground at a stationary point. It posses what types of energy?
  • A Mechanical energy
  • B Stationary energy
  • C Potential energy
  • D Vibrational energy
View Answer & Explanation
Question 24:
If a ball released from a height of 20m, How long would it take the ball to reach the ground? (assures g = 10m/s)
  • A 2sec
  • B 3sec
  • C 35sec
  • D 2.4sec
View Answer & Explanation
Question 25:
If a projectile has maximum range of 36m, find the speed of projection (Take g = 9.8m/s2)
  • A 27m/s<sup style='font-size: smaller;'>2</sup>
  • B 2m/s<sup style='font-size: smaller;'>2</sup>
  • C 4m/s<sup style='font-size: smaller;'>2</sup>
  • D 7m/s<sup style='font-size: smaller;'>2</sup>
View Answer & Explanation