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Need a bit of help with jhat and ihat in a collision 
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#1
Feb2904, 12:36 PM

P: 4

Hey there, I'm lost with this one:
Now, I know how to go about calculating the velocity of the center of mass (v(cm)= m(1)V(1)+m(2)V(2)/m(1)+m(2) The thing that throws me off is the jhats and ihats. How do I come out with a vector number? I thought of the pothagarem(sp?) therom, but decided that couldnt work. Any ideas? Thanks. 


#3
Mar104, 11:03 AM

Math
Emeritus
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Thanks
PF Gold
P: 39,500

Treat "ihat" and "jhat" as two separate problems. Then put them back together into the "momentum vector" with i and j components.



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