PART 11. Problems (36 points) Note: For full credits, you need to draw all force diagrams and other diagrams that are necessary, and show your derivations and calculations step by step. 1. A 28-g rie bullet travelling 190 m/s embeds itself in a 3.1-kg pendulum hanging on a 2.8-m-long string, which makes the pendulum swing upward in an are. a) (3 points) Draw diagrams to Show the three situations in the described process: before the bullet hits the pendulum; right after bullet hits and embeds in the pendulum; and the moment the bullet- pcndulum reaches the maximum height vertically. b) (6 points) Determine the velocity of the bullet-pendulum right after the bullet embedding itself in the pendulum. c) (5 points) Find the maximum height of the bullet-pendulum system Ay