4. A 20 kg pole extends up a wall, making a 50 angle with the wall. The pole is supported by a cable attached 2/3 of the way along the pole. This support cable is perpendicular to the wall. A 15 kg sign hangs from the end of the pole. The pole has a uniform mass distribution. Your here (a) For the situation as described and shown in the figure above: i. What is the tension in the cable? ii. What are the r and y components of the force the wall exerts on the pole? You must include an extended free body diagram showing all forces acting on the pole. (b) Say the pole is attached to the wall by a joint that allows it to swing vertically. If the pole is 3 m long and the cable supporting the pole suddenly snaps, what is the pole's angular acceleration