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Hi, I have a question regarding a dynamics question that be found here:http://by.genie.uottawa.ca/~mess/files/MCG_2107/MCG2107_M2005_p2.pdf, It is the first problem on that link (labeled number 2.)

I did ƩFx, ƩFy, ƩM

Friction force and acceleration of G were correct but angular acceleration was wrong.

My equations were:

ƩFx: -μ

ƩFy: N-mg+Tsin(30)=0

ƩM

ΔFf=17.6N, Ag=1.0281, α=8.84

α should be equal to .295

I did ƩFx, ƩFy, ƩM

_{G}which allowed me to find angular acceleration, frictional force, and acceleration of G.Friction force and acceleration of G were correct but angular acceleration was wrong.

My equations were:

ƩFx: -μ

_{k}N + T cos(30)=ma_{G}ƩFy: N-mg+Tsin(30)=0

ƩM

_{G}: Tcos(30)(0.075)-μ_{k}N(0.2)=IαΔFf=17.6N, Ag=1.0281, α=8.84

α should be equal to .295

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