+y B A +x Three students converge on the last textbook in the store. All three grab it and begin to pull in the directions shown in the above figure. Student A exerts a force of 42.10 N, student B pulls with a force of 20.94 N, and student C pulls with a force of 65.11 N at an angle (theta)=77.90 degrees above the -x axis. Considering these three forces (ignore the force of gravity on the book), what is the magnitude of the net force on the book? (Note: The fiqure is not drawn to scale.) Give the angle of the resultant force with respect to the +x- axis. Assume the counter-clockwise direction to be positive and the clockwise direction to be negative.