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Problem 29 Easy Difficulty

A $15.0-\mathrm{kg}$ fish swimming at 1.10 $\mathrm{m} / \mathrm{s}$ suddenly gobbles up a $4.50-\mathrm{kg}$ fish that is initially stationary. Neglect any drag effects of the water. (a) Find the speed of the large fish just after it eats the small one. (b) How much mechanical energy was dissipated during
this meal?

Answer

(a) $v_{2}=0.846 \mathrm{m} / \mathrm{s}$
(b) $-2.10 \mathrm{J}$

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Video Transcript

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