A salamander of the genus Hydro-mantes 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 shows the acceleration magnitude a versus time t for the acceleration phase of the launch in a typical situation. The indicated accelerations are a2 = 400m/s2 and a1 = 100m/s2. What is the outward speed of the tongue at the end of the accelerationphase?

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10 20 30 40 I (ms)