An iceberg is a large piece of freshwater ice that has broken off a glacier or an ice shelf. Some scientists believe that icebergs could be used to supply freshwater. It has been estimated that an iceberg of mass 3.0 x 10" kg could provide water for half a million people for up to a year. Computer models have calculated that just one tug boat would be needed to move such an iceberg half way around the world. Tow rope Tug boat 130 Iceberg Tow rope a) In considering the forces acting on the iceberg which is being towed at constant speed, which of the following statements is not correct? (2 marks) O the weight of the Iceberg is balanced by the support force from the sea the combined tension is equal to the drag force O the combined tension is zero Tim O the weight of the iceberg is around 30 GN