2. To maintain the stone’s motion, a horizontal force (in the +xdirection) is needed that cancels the retarding effect due to kinetic friction. Applying Newton’s second to the xandyaxes, we obtain 0kNFfmaFmg−=respectively. The second equation yields the normal force FN= mg, so that (using Eq. 6-2)
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.