(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A wheel decellerates from 100 rpm in 10 sec. Find angular acceleration, torque and the force torque is producing on a fixed object.

The wheel has a radius of .0025m and a mass of 50kg.

2. Relevant equations

T=Ia

a=ra

T=dL/dt

3. The attempt at a solution

The first thing I did was change rpm to rad/sec which gave me 10.5 rad/sec.

for angular acceleration i used: a=ra-> .0025*10.5/10 which gave me

a=.002625 rad/sec^2.

For torque i used 1/2*50*.0025^2*1.05 which gave me .00016 kgm^2.

I am not sure where to go with this now, or even if I am headed in the right direction. Any suggestions would be greatly appreciated.

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# Homework Help: Rotational motion

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