(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

a ballistic pendulum is hit by a bullet traveling 500m/s , the ballistic pendulum is a block of wood hanging from a string.

the block of wood (1kg) is hanging from the string of 2.5m

the bullet has mass .006kg @ 500m/s

the bullet passes right through the block of wood before it makes any significant movement.

the block of wood swings to a max angle of 12 degrees with the vertical.

ive drawn out a microsoft paint image.

http://img512.imageshack.us/img512/262/bulletib5.jpg [Broken]

2. Relevant equations

conservation of energy

and momentum

3. The attempt at a solution

here is my solution

please tell me if i got the correct answer, this is from a test i took yesterday

http://img246.imageshack.us/img246/5002/bullet2lv3.jpg [Broken]

edit : ive made changes,, the correct initial velocity of the block .98 m/s

and the bullets initial momentum is 3 kg-m/s

and the final bullet velocity is 333.333,, is this correct?

thank you

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# Homework Help: Ballistic pendulum

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