Physics
posted by Anonymous .
A cup of coffee is sitting in an airplane flying at constant speed and altitude. Mu between cup and table is .36. The plane accelerates, maintaining constant altitude. What is the maximum acceleration that the plan can have without the cup sliding backwards?

Physics 
bobpursley
friction force=masscoffe*a
mu*g*masscoffee=masscoffee*a
solve for a. 
Physics 
Anonymous
a = mu*g*m/m
a = mu*g
a = (.36)(9.80 m/s^2)
a = 3.528 m/s^2
Is this correct? 
Physics 
bobpursley
yes.
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