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Physics 1997 JAMB Past Questions

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6

Which of the following with respect to a body performing simple harmonic motion are in phase?

  • A. displacement and velocity of the body
  • B. displacement and force on the body
  • C. velocity and acceleration of the body
  • D. force acting on the body and the acceleration
View Answer & Discuss (16) JAMB 1997
7
A body of mass 2kg moving vertically upwards has its velocity increased uniformly from 10ms-1 to 40ms-1 in 4s. Neglecting air resistance, calculate the upward vertical force acting on the body.[g = 10 ms-1]
  • A. 15N
  • B. 20N
  • C. 35N
  • D. 45N
View Answer & Discuss (11) JAMB 1997
8
A planet has mass m1 and is at a distance r, from the sun. A second planet has mass m2 = 10m1 and at a distance of r2 = 2r1 from the sun. Determine the ratio of the gravitational force experienced by the planets.
  • A. 1 : 5
  • B. 2 : 5
  • C. 3 : 5
  • D. 4 : 5
View Answer & Discuss (13) JAMB 1997
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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9

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
View Answer & Discuss (35) JAMB 1997
10

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 & Discuss (10) JAMB 1997
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