1. A box weighing 40 kg is hanging from two chains attached to an overhead beam at angles of 56" and 49. Find the magnitude of the tension in each chain algebraically, correct to 2 decimal places. 2. A ferryboat crosses a river 'om point A to point B across the river (see the diagram below). The width of the river is 500 m. The ferryboat can travel at a speed of 3 W8 relative to the water and the river is owing at 5 mfs. a m a) Determine the heading (direction) the captain of the ferryboat should set to cross the river from point A to point B. 1:) Determine the speed of the ferryboat relative to shore. c) Determine how long is the trip from point A to point B