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A clay ball with a mass of .35 kg has an initial speed of 4.2 m/s. It strikes a 3.5 kg clay ball at rest and the two balls stick together. The final velocity of the balls is 2.1m/s north. What is the first balls initial velocity?
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A particle starts from the origin at t = 0 with an initial velocity having an x component of 26.6 m/s and a y component of -14.8 m/s. The particle moves in the xy plane with an x component of acceleration only, given by ...
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