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Monday, 20 April 2026
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Physics Past Questions and Answers

Topic: Centripetal and centrifugal forces

Jamb Physics Questions - Centripetal and centrifugal forces

Question 1:
I. Its velocity is constant
II. No work is done on the body
III. It has constant acceleration directed away from the centre
IV. The centripetal force is directed towards the centre
Which combination of the above is true of a body moving with constant speed in a circular track?
  • A II and IV
  • B I and IV
  • C II and III
  • D I and III
View Answer & Explanation
Question 2:
A piece of stone attached to one end of a string is whirled round in a horizontal circle and the string suddenly cuts.

The stone will fly off in a direction
  • A Perpendicular to the circular path
  • B Parallel to the circular path
  • C Tangential to the circular path
  • D Towards the center of the circle
View Answer & Explanation
Question 3:
A satellite is in a parking orbit if its period is
  • A Less than the period of the earth
  • B More than the period of the earth
  • C Equal to the period of the earth
  • D The square of the period of the earth
View Answer & Explanation
Question 4:
A car of mass 1500 kg goes round a circular curve of radius 50m at a speed of 40 ms-1. The magnitude of the centripetal force on the car is ?
  • A 4.8 x 10<sup style='font-size: smaller;'>4</sup> N
  • B 4.8 x 10<sup style='font-size: smaller;'>3 </sup> N
  • C 1.2 x 10<sup style='font-size: smaller;'>3 </sup> N
  • D 1.2 x 10<sup style='font-size: smaller;'>2</sup> N
View Answer & Explanation
Question 5:
I. The motion of the tyres of a moving car.
II. The motion of a loaded test tube oscillated
vertically.
III. The beating of the heart.
IV. A stone tied to a string and whirled round.
V. The motion of the pistons in a gasoline engine.
Which of the motions above is simple harmonic?
  • A III, IV and V only
  • B II, III and V only
  • C II, III and IV only
  • D I,II and III only
View Answer & Explanation