Each group should hand in one copy of this page at the end of class Group: Names of group members present: 8. Here is Albert in an elevator. Albert's mass is 100 kg. (a) What forces are acting on Albert when the elevator is not moving? How big are these forces (give numbers)? 6 What is the net force on Albert? (b) What forces are acting on Albert when the elevator is moving upward with a constant speed of 4 m/sec? How big are these forces (again, numbers)? What is the net force on Albert? (c) What forces are acting on Albert when the elevator is accelerating upward with an acceleration of V2 m/secz? How big are these forces (yes, with numbers!)? What is the net force on Albert