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| 1. |
Ma cm=F |
| Answer» Rcm = m1r1+m2r2+---+mnrn/m1+m2h---m3Rcm=m1r1+m2r2+---mnrn/MWHERE M IS MASS OF THE SYSTEM Mrcm=m1r1+m2r2+----mnrnMd(rcm) /dt=m1dr1/dt+m2dr2/dt+---mndrn/dtMvcm= m1v1+m2v2+-----mnvnMdvcm/dt= m1dv1/dt+mdv2/dt+---mndvn/dtMacm= m1a1+m2a2+---mnanMacm=f1+f2+----fnMacm = f | |