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Part A) You have a ballistic pendulum. The projectile has mass m1 and the pendulum bob...

Part A) You have a ballistic pendulum. The projectile has mass m1 and the pendulum bob has mass m2. The pendulum is of length L. The projectile is launched horizontally with an unknown speed vo. After the collision with the pendulum bob, the projectile bounces straight back with a speed vb. The pendulum swings up to a maximum angle of φ. Find vo.

Part B) For the ballistic pendulum above, calculate how much mechanical energy was converted into heat during the full trajectory.

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