At a county fair truckpull, two pickup trucks are attached to the back end of a monster truck as illustrated in the figure. One of the pickups pulls with a force of 4000pounds and the other pulls with a force of 2500 pounds with an angle of 45 degrees between them. With how much force must the monster truck pull in order to remainunmoved? (Hint: Find the resultant force of the twotrucks.)

The monster truck must pull with approximately ??? pounds of force. (Round to the nearest hundred pounds asneeded.)