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Answer it fast if u want a helpful rating. For Totally Inelastic Formula: m1v1 + m2v2 = (m1 + m2)vF

An artillery shell of mass 30 kg has a velocity of 250 m/s
vertically upward. The shell explodes into two pieces;
immediately after the explosion a fragment of mass 10 kg has a
velocity of 120 m/s straight downward. How high above the point
of the explosion does the larger fragment rise?
d = 9,644.49 m

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