Sati or Suttee is what they call that tradition in India and it's very rarely today because when they are colonized they were forbidden to do that tradition again. But few believes that this tradition frees them and they will get the nirvana or peaceful and beautiful life after death.
The speed of an object is defined as the total distance covered divided by total time taken. The velocity of an object is defined as the total displacement divided by total time taken.
