6) A 60 kg bully pushes a 30 kg kid. The bully applies a force of 100 N on the kid to the right. a) Determine the acceleration of each person if there is no friction. b) If the bully is not to get pushed backwards, how much force must he apply to the ground? (obviously there is now friction) c) Assuming the friction acting on the kid is half that acting on the bully (an excellent assumption), what will the kid's new acceleration be