A truck of mass 500 kg moving at 4m s collides with anoyhee truck of mass 1500 kg moving in the same direction at 2 m/s . What is their common velocities just after after the collisiion if they move move off together
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P=M*V
TOTAL MOMENTUM BEFORE COLLISSION=500*4=2000 KG*MS^-1
TOTAL MOMENTUM AFTER COLLISION=1500*2=3000 KG*MS^-1
TOTAL MOMENTUM =5000^KG*MS^-1
TOTAL MASS AFTER COLLISION=2000 KG
MOMENTUM=
P=M*V
5000=2000*V
V=5000/2000
V=2.5m/s..
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