Question

A grinding wheel is a uniform cylinder with a radius of 8.40 cm and a mass...

A grinding wheel is a uniform cylinder with a radius of 8.40 cm and a mass of 0.350 kg .

a) Calculate its moment of inertia about its center.

b) Calculate the applied torque needed to accelerate it from rest to 1700 rpm in 5.00 s if it is known to slow down from 1750 rpm to rest in 56.5 s .

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Answer #1

a)The moment of inertia about its centre is, 12 m2 2 (0.35)(0.084) =1.2348x10-kg.m? =1.23x10-kg.m? b)The angular acceleration

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