Thread Closed

Silly question about Cross-Product

 
Share Thread Thread Tools
Mar3-08, 01:09 PM   #1
 
Recognitions:
Gold Membership Gold Member

Silly question about Cross-Product


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?
PhysOrg.com
PhysOrg
science news on PhysOrg.com

>> King Richard III found in 'untidy lozenge-shaped grave'
>> Google Drive sports new view and scan enhancements
>> Researcher admits mistakes in stem cell study
Mar3-08, 02:19 PM   #2
 
Blog Entries: 5
Recognitions:
Homework Helper Homework Help
Science Advisor Science Advisor
It doesn't matter. m is just a number, so
r x (m v) = (m r) x v = m (r x v)
Thread Closed
Thread Tools


Similar Threads for: Silly question about Cross-Product
Thread Forum Replies
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