A 100 gram firecracker sliding acrosss the ice at 5 m/s breaks up into two unequal pieces a 60 gram piece moves of at 7.8 m/s at an angle of 50.2 relative to the firecrackers inital direction, while the 40 gram piece moves at 10.3 m/s at an angle of 60.9 relatie to the firecreakers inital direction. Show the momentum has been conserved in this explosion