CHAPTER 3
PROBLEM 3.5 A 150-N force acts on the end of the 1 m lever as shown. Determine the moment of the force about O. SOLutiOn First note P P x y = ∞ = = ∞ = 150 30 129 9 150 30 75 cos. sin N N Noting that the direction of the moment of P x about O is clockwise and P y about O is counterclockwise, M xP yP B y x= - = - = - ( . )( ) ( . )( . ). 0 ...