10) (Honors) To give a 19-kg child a ride, two teenagers pull on a 3.7 kg sled with ropes, as indicated in the gure. Both teenagers pull with a force of SSN at an an angle of 35 degrees relative to the forward direction, which is the direction of motion. In addition, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57N. Find the acceleration of the sled with the child. 5N