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May 25, 2015

Homework Help: physics

Posted by J on Sunday, September 19, 2010 at 5:14pm.

A 4kg object is subjected to two forces, F1=2Ni-3Nj, and F2=4Ni-11Nj. The object is at rest at the origin at t=0.

What is the objects acceleration? I know you use F=m*a

Do you add the two F vectors together & take the square root to find the sum of F?
ex: Fnet=6Ni-14Nj & then sqrt(6^2+14^2)=12.5N

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