复旦大学《大学物理》课件（英文）-第7、8章(1).pdfVIP免费

Chapter7Systemsofparticles7-5Conservationofmomentuminasystemofparticles7-4Centerofmassofsolidobjects7-3Many-particlesystem7-2Two-particlesystem7-1ThemotionofacomplexobjectWhencantheobjectstudiedberegardedasamasspoint?DoingonlytranslationalmotionTranslational+RotationalmotionTranslationalmotionRotationalmotion7-1ThemotionofacomplexobjectWhenweprojectilearigidbody,themotionofthebodylooksverycomplicated.Wecanconsiderthemotionoftherigidbodytobeacombinationofaparabolictrajectoryofa“centerofmass”(rotationalmotionisnotconsidered)plusarotationabout“centerofmass”(translationalmotionisnotconsidered).Howtofindthecenterofmass(CM)ofaparticlesystem?7-2Two-particl...