298 Rotation of a Rigid Object About a Fixed AxisP10.33In the previous problem we calculated the maximum torque that can be applied without skidding tobe 882 N · m. This same torque is to be applied by the frictional force, f, between the brake pad andthe rotor for this wheel. Since the wheel is slipping against the brake pad, we use the coefficient ofkinetic friction to calculate the normal force.τµ==frn rkbg, so nrk⋅=×=τµ8820220802 108023Nm0.500mN kNafaf...Section 10.7Relationship Between Torque and Angular AccelerationP10.34(a)IMR×=× ⋅−−12122 007 00 104 90 102223.kgmkg m2ejαωπ×===−Itt0600490 1012212001221033260...rad ss2∆∆∆∆ch(b)∆θα==12121221 0364 710 322trad ssradrevaf.P10.35m=0750. kg,F=0800N(a)=⋅rF30 00 80024 0.m NNmaf(b)==IrFmr24 0075030000356..afrad s2(c)art=00356300107.ms2FIG. P10.35
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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 .