Question

A Space craft of mass 2000 kg moving with avelocity of 600m/s suddenly explodes into twopieces one piece of mass 500 kg is left staionary the velocity of ither part must be

Answer 1

initial is answer ok na

Answer 2

one piece of mass 500kg is left stationary

so its velocity will be 0 after explosion

from law of conservation of linear momentum

MV=m1v1+m2v2

2000×600=(500×0)+(1500×v2)

v2=1200000÷1500

   =800m/s

Hope this helps you