Answer to Question #114784 in Physics for Jason

Question

You have built a giant tire swing. It is hanging of a 8m horizontal plank weighing 64kg. The plank is attached to a wall by a cable at 35 degree angle 2m away from where the tire is hanging off of. If the tire swing is 8m long and and there is a 95kg person swinging on it from the board What will the tension be when the swing is completely straight towards the ground

Answer 1

$$T \sec{35}=mg+Mg\\T \sec{35}=(95+64)(9.8)$$

$$T=1300\ N=1.3\ kN$$