Particles of mass 10-2kg is fixed to the tip of... - JAMB Physics 1999 Question
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
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Correct Option: B
F = (MV2)/r = Mω2r
F = (10)2 x (100) x 0.2
F =20 N
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