Search SchoolNGR

Monday, 20 April 2026
Register . Login

Physics Past Questions and Answers

Topic: Applications

Jamb Physics Questions - Applications

Question 6:
An object of mass 2 kg moves with a velocity of 10 ms1 round at circle of radius 4 m. Calculate the centripetal force on the object
  • A 25 N
  • B 100 N
  • C 50 N
  • D 40 N
View Answer & Explanation
Question 7:
Particles of mass 10^-2kg is fixed to the tip of a fan blade which rotates with angular velocity of 100rad-1. If the radius of the blade is 0.2m, the centripetal force is
  • A 2 N
  • B 20 N
  • C 200 N
  • D 400 N
View Answer & Explanation
Question 8:
Calculate the escape velocity of a satellite launched from the earth's surface if the radius of the earth is 6.4x106m
  • A 25.3kms<sup style='font-size: smaller;'>-1</sup>
  • B 4.2kms<sup style='font-size: smaller;'>-1</sup>
  • C 4.0kms<sup style='font-size: smaller;'>-1</sup>
  • D 11.3kms<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 9:
If an object which mass is 3kg moves in a circular path of a radius 0.7m, record a speed at 2m/s what is the result of the angular velocity?
  • A 4 rads<sup style='font-size: smaller;'>–1</sup>
  • B 1rads–1<sup style='font-size: smaller;'>–1</sup>
  • C 3<sup style='font-size: smaller;'>–1</sup>rads–1
  • D 4rads–1<sup style='font-size: smaller;'>–1</sup>
View Answer & Explanation
Question 10:
A satellite moves in a circular orbit of radius 4R round the earth. The acceleration of the satellite in terms of g is
  • A \(\frac{g}{16}\)
  • B \(\frac{g}{4}\)
  • C \(\frac{4}{g}\)
  • D \(\frac{16}{g}\)
View Answer & Explanation