A bomb of mass 60 kg moving uniformly with a velocity of 10m/s explodes spontaneously into two fragments of 40 kg and 20 kg. If the velocity of the larger fragments is zero, then calculate the velocity of the smaller fragement.

A bomb of mass 60 kg moving uniformly with a velocity of 10m/s explode

1.	A bomb of mass 60 kg moving uniformly with a velocity of 10m/s explodes spontaneously into two fragments of 40 kg and 20 kg. If the velocity of the larger fragments is zero, then calculate the velocity of the smaller fragement.
Answer» `40m//s` `20m//s` `50m//s` `30m//s` SOLUTION :`mv=m_(1)v_(1)+m_(2)v_(2)` `therefore 60(10)=20v_(1)+40(0)` `therefore 600=20v_(1)` `therefore v_(1)=30m//s`