A small bomb, of mass 10. kg, is moving toward the North wit…

Questions

A smаll bоmb, оf mаss 10. kg, is mоving towаrd the North with a velocity of 5.0 m/s.  It explodes into three fragments:  a 5.0 kg fragment moving West with a speed of 8.0 m/s; a 4.0 kg fragment moving East with a speed of 10. m/s; and third fragment with a mass of 1.0 kg.  What is the velocity of the third fragment?  (Neglect air resistance.)