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a horizontal force f=mg/3 is applied on the upper surface of a uniform cube of mass m and side a which is resting on rough horizontal surface having k=1/2(friction co eff)the distance between lines of action of mg and normal reaction is

akash kashyp , 15 Years ago
Grade Upto college level
anser 1 Answers
Badiuddin askIITians.ismu Expert

Last Activity: 15 Years ago

Dear akash

 

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maximum static friction force=mg/2 >mg/3

so only mg/3 static friction force will act

N=mg

moment balance about the center of the cube.

mg/3 *a/2  +mg/3 *a/2 = mg*0 +N *x

x=a/3


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