General Direction: Write the problems and the complete solutions in the given plate format. Present the solution in the most presentable manner. For file name: SURNAMLFIRSTNAME A. Solve the problems carefully. Follow the steps shown in the sample prob- lems. 1. Two forces have the same magnitude 1\" and they act on the same body. Sketch the free-body diagram and solve for the angle between them if any, when the vector sum of the forces has a magnitude of (a) 2F, (b) fur and [c] zero. 2. A girl and a boy pulled horizontally on ropes attached to a 20 kg box and made it to slide over a concrete surface (11k=0.8). The angle between two ropes is 90. a. Sketch a the free-body diagram where forces exerted by both the girl and the boy are equal. b. Solve for the kinetic friction exerted by the surface on the box. c. Solve for the forces exerted by both the girl and the boy when the box slides at constant velocity. (1. Solve for the net force acted on the box, and its acceleration, if the boy and the girl both applied 300 N force to the box. e. Identify at least 5 action-reaction pairs that you may think possible in this