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Physics, 27.01.2020 23:31 marleacorey
Agadget of mass 21.85 kg floats in space without motion. because of some internal malfunction, the gadget violently breaks up into 3 fragments flying away from each other. the first fragment has mass m1 = 6.42 kg and speed v1 = 6.8 m/s while the second fragment has mass m2 = 8.26 kg and speed v2 = 3.54 m/s. the angle between the velocity vectors ~v1 and ~v2 is θ12 = 64 ◦ . what is the speed v3 of the third fragment? answer in units of m/s.
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