Application (10 marks) 12. A 20kg mass is suspended from a horizontal ceiling by two chains. One of the chains makes an angle of 30 with the ceiling and has a tension of 100N. Determine the tension in the other chain and the angle it makes with the ceiling. 30 10ON 20kg 13. A cruise ship leaves port and sails at a heading of $60 W to an island that is 200km away. The next day, it sails 250km on a heading of N10 E to another island. The final day, it sails in a straight line back to port. Determine the direction and distance travelled when returning to port. oil