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 2-24 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 m//s^(2)` and `a_(1)=100 m//s^(2)`. What is the outward speed of the tongue at the end of the acceleration phase ?

Answer

5.0 m/s