A crate of weight Fg is pushed by a force on a horizontal floor.

(a) If the coefficient of static friction is μs, and is directed at angle θ below the horizontal, show that the minimum value of P that will move the crate is given by the following equation.

(Do this on paper. Your instructor may ask you to turn in this work.)

(b) Find the minimum value of P that can produce motion when μs = 0.450 and Fg = 145 N for the following angles.

θ = 0°
θ = 15.0°
θ = 30.0°
θ = 45.0°
θ = 60.0

2 answers

exactly what equation?

MINIMUM VALUE OF P THAT