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 /Acceler

Question

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​

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Nho 3 months 2021-07-30T18:28:31+00:00 1 Answers 4 views 0

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    2021-07-30T18:30:23+00:00

    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   = \sqrt{181.25\\}

                                      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

                          = \frac{55}{5.0}

                          = 11 m/s

    Therefore, the velocity is 11 m/s.

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