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?
-
A.
6.25 x 10-14N -
B.
1.60 x10-13N -
C.
5.00 x 10N -
D.
1.00×102N -
E.
2.00x1O2N
Correct Answer: Option D
Explanation
F = ma = 2.5 x 10-6 x 4 x 107 = 100N