(11 %) Problem 4: A uniform beam of length Z = 3.3 m and mass M = 35 kg has its lower end fixed to pivot at a point P on the floor, making an angle 0 = 27 as shown in the diagram. A horizontal cable is attached at its upper end B to a point A on a wall. A box of the same mass M as the beam is suspended from a rope that is attached to the beam one-fourth L from its upper end. M D A 33% Part (a) What is the y-component Py of the force, in newtons, exerted by the pivot on the beam? Py =1 Grade Summary Deductions Potential 100% sin( cost tan( 7 8 9 Submissions cotan( asin acos() E 4 5 6 Attempts remaining: 5 (4 per attempt) atan() acotan() sinh() 2 3 detailed view coshO tanho cotanh() 0 Degrees O Radians VO Submit Hint Hints: 1%% deduction per hint. Hints remaining: 2 Feedback: 2%% deduction per feedback & 33 Part (b) Write an expression for the tension 7 in the horizontal cable AB. 4 33% Part (c) What is the x-component P, of the force, in newtons, exerted by the pivot on the beam