An object initially at rest on a horizontal OX axis explodes into two pieces . One piece moves just after explosion along the axis OX with a speed of 6m/s. What are the direction and the magnitude of the velocity of the second piece whose mass is three times that of the first?

Answer 1

momentum is conserved

the 2nd (larger) piece moves in the opposite direction at 1/3 the speed

Answer 2

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