A 5.00-g bullet is fired into a 500-g block of wood suspended as a ballistic pendulum. the combined mass swings up to a height of 8.00 cm. What was the magnitude of the momentum of the combined mass immediately after the collision

Explanation:

The combined speed after collision can be determined by means of the Principle of the Energy Conservation:

The magnitud of the momentum of the combined mass immediately after the collision:

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.