## ParthKohli 2 years ago A bullet of mass $$\rm 8 g$$ moving with velocity $$\rm 400 ms^{-1}$$ gets embedded in a freely suspended wooden block of mass $$\rm 800 g$$. What is the velocity acquired by the block?

1. ParthKohli

I keep getting $$\rm 4 ms^{-1}$$ but my course module says it's $$3.96 \rm ms^{-1}$$.

2. ParthKohli

@Mashy

3. Mashy

momentum conservation 8 X 400 = 808 X (velocity of wooden block)

4. Mashy

you forgot to consder the masss of the bullet in the wooden block :P

5. ParthKohli

OMG, wait...

6. ParthKohli

Let me try that.

7. ParthKohli

I'm a newb. Thanks!

8. Mashy

newb? :O.. you have 99 smartscore

9. ParthKohli

Yeah. SmartScore is just a number. No wait, SmartScore is a word.

10. Mashy

:P