2. We apply Newton’s second law (Eq. 5-1 or, equivalently, Eq. 5-2). The net force applied on the chopping block is GGGFFFnet=+12, where the vector addition is done using unit-vector notation. The acceleration of the block is given by GGGaFFmdi/.(a) In the first case ()()()ˆˆˆˆ3.0N i4.0N j3.0N i4.0N j0ªºªº+=++−+−=¬¼¬¼GGsoGa=0.(b) In the second case, the acceleration
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.