The land speed record of 139 ms 31 mih for birds is held, Ask an Expert

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The land speed record of 13.9 m/s (31 mi/h) for birds is held bythe Australian emu. An emu running due south in a straight line atthis speed slows down to a speed of 10.5 m/s in 3.3 s.Assuming that the acceleration remains the same, what is the bird'svelocity after an additional 4.3 s haselapsed?

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