206 Energy and Energy Transfer*P7.50(a)We writeFaxaabbbaabbbbb====FHGIKJ=====×=1 0000 1295 0000 315503150129244524451801000401 101.804N mmN0.129 mNm1.8.....lnln .lnln ...afafaf(b)WFdxxdxx×=×=zz002541.8042804294...........m1.8m1.8m1.8NmNmNmmJaf*P7.51The work done by the applied force isWFdxk xk xdxk x dxk x dxkxkxkxkxifxxx−−+=+=+applied122010220120230122323ejmaxmaxmaxmaxmaxmaxmaxP7.52(a)The work done by the traveler is mgh Nswhere Nis the number of steps he climbs duringthe ride.N=(time on escalator)(
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .