e. If the rope has a diameter of 12.5 mm, calculate the stress in the rope. (3 marks) f. The clown moves to the left edge of the beam and at the same time. an acrobat hangs onto the beam to bring it horizontal again. Where does the acrobat need to position themselves if their mass is 57 kg? (4 marks) Give your answers to Parts (d) to (f) to two significant figures and take the acceleration due to gravity, g, to be 9.8 m s'2. Question 4 LJ This question is worth 20 marks. Figure 2 shows a circus beam. 5 m in length and hung from the ceiling from its point A. 2 m from the left edge of the beam. The beam is uniform and its mass is 10 kg. A monkey of mass 35 kg hangs at point B, 2 m from point A on the right side, and a clown positions themselves at point C. 1 m from point A on the left side. as shown in the Figure. Figure 2 A circus beam a. Draw a diagram showing all the forces acting on the beam and the distances from point A that each force acts. (4 marks) b. State, in words. two conditions that must be satised for the beam to be horizontal in equilibrium. (2 marks) c. For each of the two conditions you have identied in Part (b), using the information contained in your diagram, write an equation that must be satised for the beam to remain horizontal. Do not include units in your equations. (4 marks) d. What is the clown's mass (in kg) that allows the beam to be horizontal