英文
A89mphsliderthrownbyNYMetsAceMattHarveyspinsatarateof
1900rpm.(a)Whatistheangularmomentumoftheslider?(b)Ifittakes0.06sforhim
tospintheballfromrestwhenhepitches,whatisthetorqueheappliestotheball?A
baseballis0.14kginmassand9.25inchesincircumference.