- #1

rsala

- 40

- 0

## Homework Statement

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

## Homework Equations

conservation of energy

and momentum

## 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

edit : I've 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

Last edited by a moderator: