Problem 1 (a) Draw a free-body diagram for the skydiver in Problem 4 of Chapter 5. (b) What is the magnitude of the air drag force on the skydiver, after he reaches terminal speed? Problem 2 A person pushes a 10 kg box on the ground with a force of 5 N. Friction between the box and the ground exerts a force on the box in the opposite direction of -1 N. (a) Draw a free body diagram of the box. (b) What is the acceleration of the box? (c) If t=0 is when the person begins to move the box, how long does it take for the box to be going 2 m/s? (d)ow far has the box moved after this time has come to pass?