Show that in the absence of any external force, the velocity of CM rem

1.	Show that in the absence of any external force, the velocity of CM remains constant.
Answer» SOLUTION :`vecF_("ext")=M.veca_(CM)` SINCE `vecF_(ext)=0` `Mveca_(CM)=0` i.e.`veca_(CM)=0` `veca_(CM)=d/(dt)(vecV_(CM))` `:.vecV_(CM)=` constant

Discussion