(Solved): Static friction allows us to be staionary while on an incline (without friction, we would always sli ...

Static friction allows us to be staionary while on an incline (without friction, we would always slide on any incline!). With this in mind, what does the coefficient of static friction ?s need to be such that Rhubarb (mass m) does not slide down an incline of 30, 45, and 60 degrees? Draw a free body diagram for one of your examples with vectors clearly labeled and decomposed in your chosen coordinate system.