13.42: An object of mass 12M is at rest whe
rx5llgsq7z:p 1tbk/ht3j 9 f(n it suddenly explodes into 3 pieces with masses 3M, 4M and 5M. The piece of
xg s: tph593b( j/zlk lq1f7rtmass 3M moves with speed V in the direction shown in the diagram. What is the speed of the piece with mass 5M knowing that it is moving directly to the right?