A 9.00- bullet, moving horizontally with an initial speed , embeds itself in a 1.20- pendulum bob that is initially at rest. The length of the pendulum is = 0.730 . After the collision, the pendulum swings to one side and comes to rest when it has gained a vertical height of 14.0 .

Is the kinetic energy of the bullet-bob system immediately after the collision greater than, less than, or the same as the kinetic energy of the system just before the collision?

Is the kinetic energy of the bullet-bob system immediately after the collision greater than, less than, or the same as the kinetic energy of the system just before the collision?

## This question was asked on Jan 23, 2013.

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