A large football player student (1.0 x 102 kg) applies a 6.0 x 102 N force to another equally burly student (1.0 x 102 kg) sitting on a sled (13.2 kg). If sliding friction and air resistance (drag) is 99.5 N, find the acceleration of the sled. In addition, how much force does the football player need to apply to the ground to accomplish this feat? Remember, he needs to get himself moving too! (Draw FBD and use Fnet = F1 + F1 and Fnet = ma)