Asked by Charles
2.A plank is tilted slowly to an angle of 30 degrees with a 12 pound block on it
Find FN, FF and the static friction?
Find FN, FF and the static friction?
Answers
Answered by
drwls
The normal force is Fn = 12 lb * cos 30
The friction force is Ff = Fn sin 30 if the object is not moving. If the object starts moving at that tilt angle, the coefficient of static friction is
Mus = Ff/Fn tan 30
The friction force is Ff = Fn sin 30 if the object is not moving. If the object starts moving at that tilt angle, the coefficient of static friction is
Mus = Ff/Fn tan 30
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