what is the physics answer to A 25.0 kg mortar shell is launched from level ground at 38.0m/s at 60 Degrees above the horizontal. At the top of its trajectory, the shell explodes into three pieces. A 10.0 kg piece flies forward at 38.0 m/s. Another 10.0 kg piece flies straight up at 15.0m/s. What is the velocity of the remaining piece?
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