Berarti :
Sigma FX = 0
w sin 30° - f = 0
w sin 30° – usN = 0
mg sin 30° - usmg cos 30° = 0
usmg cos 30° = mg sin 30°
us cos 30° = sin 30°
us = sin 30°/cos 30°
us = tan 30°
us = 1/3 √3
Jadi koefisen 1/3√3
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Berarti :
Sigma FX = 0
w sin 30° - f = 0
w sin 30° – usN = 0
mg sin 30° - usmg cos 30° = 0
usmg cos 30° = mg sin 30°
us cos 30° = sin 30°
us = sin 30°/cos 30°
us = tan 30°
us = 1/3 √3
Jadi koefisen 1/3√3