A bird flying horizontally accidentally drops a rock it was carrying. 2. 10 s later, the rock's velocity is 22.2 m/s in a -68.2 degrees direction. What was the bird's (and rock's) initial velocity? (Unit = m/s) (Hint: the rock was originally moving with the bird.)
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A bird flying horizontally accidentally drops a rock it was carrying. 2. 10 s later, the rock's velo...
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