Particles of mass \(10^{-2}\) kg is fixed to the tip of a fan blade which rotates with angular velocity of \(100\text{ rad}^{-1}\). If the radius of the bla...

Assessment: JAMB UTME - Physics - 2021 Subject: Physics

Question 1 Report

Particles of mass \(10^{-2}\) kg is fixed to the tip of a fan blade which rotates with angular velocity of \(100\text{ rad}^{-1}\). If the radius of the blade is 0.2m, the centripetal force is?

Answer Details

Given 
m = 10−2 − 2
w = 100rads−1 − 1
F = mw2 2 r
r = 0.2m
F = ?

= 10−2 − 2  x (100)2 2  x 0.2

= 20N

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