# Confused on conservation of momentum?

1. Oct 4, 2005

### erik-the-red

Somebody throws me a ball with mass .400 $$kg$$ at velocity 10.0 $$m/s$$. My mass is 65.5 $$kg$$.

1. If I catch the ball, with what speed do the ball and I move afterwards?

Shouldn't the answer be $$(.400)(10.0=(65.9)(v_2)$$, where $$v_2=.0607$$$$m/s$$?

2. Oct 4, 2005

### Staff: Mentor

That's correct. (Assuming no other forces act on you.)