A particle of mass 2.5 x 10-6kg revolving around the earth has a radial acceleration…

Physics WAEC 1990

A particle of mass 2.5 x 10-6kg revolving around the earth has a radial acceleration of 4 X 107 ms-2. What is the centripetal force of the particles?

  • 6.25 x 10-14N
  • 1.60 x10-13N
  • 5.00 x 10N
  • 1.00x102N checkmark
  • 2.00x1O2N

The correct answer is: D

Explanation

F = ma = 2.5 x 10-6 x 4 x 107 = 100N
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