largest angle the pendulum reaches (15.80) , which you can use to determine the maximum height the Target+Bullet reaches above its original hanging height (i.e. when it's at 0 degrees).

Lengthof pendulum: (The length of the pendulum from its point of rotation to its center of mass with the bullet embedded in the target is 2 meters) and some trigonometry using the maximum angle reached.

(The acceleration due to gravity used by the simulation is g = 9.81 m/s^2.)

The bullet weighs 16.0g and the pendulum weighs 942g

please help me find:

1. Initial launch velocity of the bullet

2. and the maximum height the pendulum reaches