An air force jet flying with a speed of 335m/s went past an anti aircraft gun. How far is the aircraft 5s later when the gun was fired.

Physics Jamb, Waec, Neco Past Questions & Answers on Speed, Velocity and Acceleration



QUESTION 2:  An air force jet flying with a speed of 335m/s 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

JAMB 1978 Ans: 1675m


SOLUTIONS:

  • Speed = 335m/s
  • How far is the aircraft= Distance= ?
  • Time = 5s
  • Therefore;
  • Speed/Velocity = distance/time 
  • Speed/velocity= s/t
  • Distance = Speed x time
  • Distance = 335 x 5
  • Distance = 1675m