An object with a mass of #5 kg# is on a ramp at an incline of #pi/8 #. If the object is being pushed up the ramp with a force of # 2 N#, what is the minimum coefficient of static friction needed for the object to remain put?
For the body to remain static, we have:
Resolving forces perpendicular to the plane:
Resolving forces horizontal to the plane:
Substituting these two equations into