Asked by  | 10th Jan, 2009, 04:10: PM

Expert Answer:

yes, an internal force can change velocity of different parts of the body, but not the velocity of centre of mass of the body. Example an exploding cracker.

Answered by  | 12th Jan, 2009, 10:10: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.