A river is 120km/h wide and the water flows at 2.5km/h. A ferry man who can scull in still water at 3km/h wishes to cross the river in a direction at right angle to it's bank. Find by accurate scale drawing, the direction in which he must steer the boat and the time it takes him to cross. ​

1) a child holds two dogs on two separate leads. the dogs are pulling in different directions. one is pulling a force of 20n north and one is pulling 15n eastwards. calculate the resultant force on the child. state the direction. (use the parallelogram of forces) 2) a force of 20n acts horizontally on an object. a second force of 5n acts at 60 degrees to the first one. calculate the resultant force. worth 20 points, need answers asap with method you x