Register to reply

Silly question about Cross-Product

by Saladsamurai
Tags: crossproduct, silly
Share this thread:
Saladsamurai
#1
Mar3-08, 01:09 PM
Saladsamurai's Avatar
P: 3,016
I just forget the rule here.

I am finding angular momentum by using r x mv

If I am using the determinant to evaluate r cross v, where does the mass come in? Do I just mulyiply the result of r cross v by m?

Or do I distribute m to my vector v and then use those values inside the determinant?
Phys.Org News Partner Science news on Phys.org
Scientists discover RNA modifications in some unexpected places
Scientists discover tropical tree microbiome in Panama
'Squid skin' metamaterials project yields vivid color display
CompuChip
#2
Mar3-08, 02:19 PM
Sci Advisor
HW Helper
P: 4,300
It doesn't matter. m is just a number, so
r x (m v) = (m r) x v = m (r x v)


Register to reply

Related Discussions
Cross product Question Introductory Physics Homework 4
Cross product question. Calculus & Beyond Homework 13
A cross product question. General Math 6
Help me with cross product question! Introductory Physics Homework 7
Cross product question Linear & Abstract Algebra 46