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
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
Correct Answer: Option B
Explanation:
F = \(\frac{mv ^2}{r}\)
= \(mω^2r\)
(Since V = ωr)
F = 10\(^{-2}\) x 100\(^2\) x 0.2
F =20 N
F = \(\frac{mv ^2}{r}\)
= \(mω^2r\)
(Since V = ωr)
F = 10\(^{-2}\) x 100\(^2\) x 0.2
F =20 N