12. A father racing his son has half the kinetic energy of the son, who has half the mass of the father. The father speeds up as the son. What are the original speeds of (a) the father and (b) the son? 1.0 m/s and then has the same kinetic energy
12. A father racing his son has half the kinetic energy of the son, who has half the mass of the father. The father speeds up as the son. What are the original speeds of (a) the father and (b) the son? 1.0 m/s and then has the same kinetic energy
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Transcribed Image Text:12. A father racing his son has half the kinetic energy of the son, who has half the mass
of the father. The father speeds up by 1.0 m/s and then has the same kinetic energy
as the son. What are the original speeds of (a) the father and (b) the son?
20 ks conister that is moving in an ru plane has a
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