three dogs play tug-of-war with a chew toy. Each dog pulls with a force that is horizontal with the ground. Determine the net force acting on the chew toy and the acceleration of the chew toy if its mass is 325g. (ignore friction and gravity)

Dog 1 pull: 48.2N at 215 degrees
Dog 2 pull: 80.9N at 105 degrees
Dog 3 pull: 2.13N at 20 degrees

How do I solve for this?