A boat traveling north 13.4 m/s. The captain walks north on the deck at 1.3 m/s. What is her resu
velocity? (Velocity=Distance /Acceleration)
4. Find the velocity, in kilometers per hour, of a dolphin that swims 55 m in 5.0 s. (Velocity=Dista

The resultant velocity is 360.81 m/s and the velocity of the dolphin swims is  11 m/s

Explanation:

The boat travelling is 13.4 m/s

The captain walks on the deck is 1.3 m/s

The resultant velocity = a² + b² = c²

                                     = 13.4² + 1.3²

                                     = 179.56 + 1.69

                                  c²   =

                                  c= 360.81 m/s

To find the velocity, the dolphin swims in 55 m and the acceleration is 5.0 s

        velocity = distance / acceleration

                      =

                      = 11 m/s

Therefore, the velocity is 11 m/s.