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Suppose you increase your walking speed from 5 m/s to 15 m/s in a period of 1 s. What is your acceleration?

Respuesta :

mokatoken
Using the kinematics equation vf = vi + at we plug in all known values 15 = 5 + a*1 solving for a we get 10m/s^2
Edufirst
The definition of accelerations is the change of speed by unit of time

                                change in speed         Δv
=> acceleration =  -------------------------- =  ------
                                 time elapsed              Δt

                              [15 m/s - 5m/s]
=> acceleration = ----------------------- = [10 m/s] / 1 s = 10m/s^2

Answer: 10 m/s^2
                                        1s

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