Question

A salamander of the genus Hydromantes captures prey by launching its tongue as a projectile: The skeletal part of the tongue is shot forward, unfolding the rest of the tongue, until the outer portion lands on the prey, sticking to it. Figure $2-39$ shows the acceleration magnitude $a$ versus time $t$ for the acceleration phase of the launch in a typical situation. The indicated accelerations are $a_{2}=400 \mathrm{~m} / \mathrm{s}^{2}$ and $a_{1}=100 \mathrm{~m} / \mathrm{s}^{2}$ . What is the outward speed of the tongue at the end of the acceleration phase?

          A salamander of the genus Hydromantes captures prey by launching its tongue as a projectile: The skeletal part of the tongue is shot forward, unfolding the rest of the tongue, until the outer portion lands on the prey, sticking to it. Figure $2-39$ shows the acceleration magnitude $a$ versus time $t$ for the acceleration phase of the launch in a typical situation. The indicated accelerations are $a_{2}=400 \mathrm{~m} / \mathrm{s}^{2}$ and $a_{1}=100 \mathrm{~m} / \mathrm{s}^{2}$ . What is the outward speed of the tongue at the end of the acceleration phase?

Added by Heather S.

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