Answer to Question #286446 in Physics for Maggie

Question #286446

A robin of mass 110g speeds up from 12.3 m/s to 15.4 m/s in level flight. Calculate how much work is done by the robin on its mass

Expert's answer

The work done is

"W=\\Delta KE=\\dfrac12mv_2^2-\\dfrac12mv_1^2=4.7\\text{ J}."

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